Because the anniversary headgear thread sparked some interest, I’ve decided to go back and translate the anniversary and special headgear from previous years.  Lots of the headgears are winners from the headgear design contests they hold annually.
There’s obviously other headgears from special events, tie-ins or other cash shop offerings, but these are the ones from the major packages.
Edit: I completely missed 2009 (7th year anniversary).  I’ve updated the post to include those 5 headgears.
RWC 2009 Memorial Package
Darkness Helm[1]
Type: Headgear (Upper)
Defense: 3
Magic Defense: 0
Weight: 50
Refinable: Yes
Breakable: Yes
Required Level: 70
Required Job: Available to All Jobs
Description: The bonus given by the helm changes depending on what middle headgear is worn.
[Angel Wing Ears] : Str + 1, Aspd + 2%
[Devil Wing Ears] : Str + 1, Increases physical damage by 5%.
[Peco Peco Wing Ears]: Agi + 1, Flee + 3.
[Black Glasses]: Int + 1, MAtk + 2%.
[Darkness Eyes]: Dex + 1. Ranged attack damage + 3%.
Red Marching Hat[1]
Type: Headgear (Upper)
Defense: 2
Magic Defense: 0
Weight: 20
Refinable: Yes
Breakable: Yes
Required Level: 10
Required Job: Available to All Jobs
Description: Str + 2.
When dealing physical damage, there is a chance to cast the skill [Aspersio] Lv 2.
Dark Snake Lord Hat[0]
Type: Headgear (Upper)
Defense: 2
Magic Defense: 0
Weight: 50
Refinable: Yes
Breakable: Yes
Required Level: 10
Required Job: Available to All Jobs
Description: Int + 2, Agi + 2, Dex – 2.
When dealing magic damage, there is a chance that for two seconds you will gain Casting Time – 50% and Flee + 30 for 5 seconds.
Scooter Helmet[1]
Type: Headgear (Upper)
Defense: 7
Magic Defense: 0
Weight: 100
Refinable: Yes
Breakable: Yes
Required Level: 10
Required Job: Available to All Jobs
Description:Â Indestructible.
Captain’s Pipe[0]
Type: Headgear (Lower)
Defense: 0
Magic Defense: 0
Weight: 10
Refinable: No
Breakable: No
Required Level: 10
Required Job: Available to All Jobs
Description: If equipped in combination with the Captain’s Hat[0], increases ranged attack by a % equal to the hat’s refine rate.
RJC 2009 Memorial Package
Hermode Cap[0]
Type: Headgear (Upper)
Defense: 1
Magic Defense: 0
Weight: 100
Refinable: Yes
Breakable: Yes
Required Level: 10
Required Job: Available to All Jobs
Description: Attack Speed + 10%. ATK – 20, MAtk – 10%.
Abysmal Helm[1]
Type: Headgear (Upper)
Defense: 4
Magic Defense: 0
Weight: 100
Refinable: No
Breakable: Yes
Required Level: 70
Required Job: Available to All Jobs
Description: Reduces damage taken from boss monsters by 10%. Â Increases damage taken from all other monsters by 10%.
Red Flower Hairband[1]
Type: Headgear (Upper)
Defense: 1
Magic Defense: 0
Weight: 100
Refinable: No
Breakable: Yes
Required Level: 1
Required Job: Available to All Jobs
Description: Increases damage of Earth Spike and Heavens Drive by 15%.
Decreases cast time of Earth Spike and Heavens Drive.
For each refine, the damage of Earth Spike and Heavens Drive increases by 1%.
Ifrit Ears[0]
Type: Headgear (Middle)
Defense: 0
Magic Defense: 3
Weight: 10
Refinable: No
Breakable: No
Required Level: 70
Required Job: Available to All Jobs
Description: STR + 1.
Increases damage of Fire Bolt, Meteor Storm, and Fire Pillar skills by 2%.
Increases damage of Bash, Pierce, and Magnum Break by 2%.
Increases resistance to fire property attacks by 5%, but decreases resistance to water property by 5%.
Scarlet Rose[0]
Type: Headgear (Lower)
Defense: 0
Magic Defense: 0
Weight: 10
Refinable: No
Breakable: No
Required Level: 70
Required Job: Available to All Jobs
Description: LUK + 1.
When killing a monster there is a chance of a Whitherless Rose dropping.
7th Year Anniversary Pack Headgear
Morroc Incarnation Doll[1]
Type: Headgear (Upper)
Defense: 0
Magic Defense: 0
Weight: 30
Refinable: No
Breakable: Yes
Required Level: 70
Required Job: Available to All Jobs
Description: When killing a monster with physical or magical damage, you recover 2 SP.
When receiving physical damage, has a chance to cast ‘Critical Wounds’ Lv 2 on the attacker.
Southern Cross[1]
Type: Headgear (Upper)
Defense: 3
Magic Defense: 0
Weight: 30
Refinable: Yes
Breakable: Yes
Required Level: 70
Required Job: Available to All Jobs
Description: Int + 1.
Ignores 5% of the magic defense of boss monsters.
If refined higher than +5, adds an additional 1% magic defense ignoring for each additional refine.
Nostalgic Sakura[1]
Type: Headgear (Upper)
Defense: 2
Magic Defense: 0
Weight: 30
Refinable: Yes
Breakable: Yes
Required Level: 30
Required Job: Available to All Jobs
Description: Cast time cannot be interrupted. Â Increases casting time by 35%.
Piggie Bank[0]
Type: Headgear (Upper)
Defense: 3
Magic Defense: 0
Weight: 30
Refinable: No
Breakable: Yes
Required Level: 30
Required Job: Available to All Jobs
Description: When killing a monster, there’s a chance to gain some zeny. Â Increases skill delay by 10%.
Poring Letter[0]
Type: Headgear (Lower)
Defense: 0
Magic Defense: 0
Weight: 10
Refinable: No
Breakable: No
Required Level: 10
Required Job: Available to All Jobs
Description: Increases physical damage against plant monsters by 5%.
When killing a monster, it adds a low chance of dropping a ‘Unripe Apple’.
6th Year Anniversary Pack Headgear
Dragon Helm[0]
Type: Headgear (Upper)
Defense: 5
Magic Defense: 0
Weight: 200
Refinable: Yes
Breakable: Yes
Required Level: 50
Required Job: Available to All Jobs
Description: Increases physical damage versus Dragon monsters by 2 0%.
When dealing physical damage, there’s a chance of casting ‘Dragon Fear’, causing a random status ailment to all targets in a 5×5 area around the user.
Wind Guide[1]
Type: Headgear (Upper)
Defense: 2
Magic Defense: 0
Weight: 10
Refinable: Yes
Breakable: Yes
Required Level: 10
Required Job: Available to All Jobs
Description: AGI + 2. Â Enables usage of [Teleport] Lv 1.
Parade Hat[1]
Type: Headgear (Upper)
Defense: 3
Magic Defense: 2
Weight: 80
Refinable: Yes
Breakable: Yes
Required Level: 1
Required Job: Available to All Jobs
Description: Reduces skill aftercast delay by 5%.
For each refine above +5, it grants an additional 1% reduction to skill delay.
Darkness Eyes[0]
Type: Headgear (Middle)
Defense: 1
Magic Defense: 0
Weight: 10
Refinable: No
Breakable: No
Required Level: 50
Required Job: Available to All Jobs
Description: Dex + 1. Â Adds immunity to blind.
Reginrev’s Wings[0]
Type: Headgear (Middle)
Defense: 1
Magic Defense: 0
Weight: 80
Refinable: No
Breakable: No
Required Level: 50
Required Job: Available to All Jobs
Description: Increases resistance to Water, Fire, Shadow, and Undead property attacks by 3%.
5th Year Anniversary Headgear
Hyakke’s Black Cat Ears[0]
Type: Headgear (Upper)
Defense: 2
Magic Defense: 0
Weight: 20
Slots: 0
Refinable: Yes
Breakable: Yes
Required Level: 45
Required Job: Available to All Jobs
Description: Defense – 50%, Flee + 10, Critical + 3.
Increases critical attack damage by 10%.
Captain’s Hat[0]
Type: Headgear (Upper)
Defense: 3
Magic Defense: 0
Weight: 50
Slots: 0
Refinable: Yes
Breakable: Yes
Required Level: 30
Required Job: Available to All Jobs
Description: Increases damage of ranged attacks by 3%.
Peco Wing Ears[0]
Type: Headgear (Middle)
Defense: 1
Magic Defense: 2
Weight: 10
Slots: 0
Refinable: No
Breakable: No
Required Level: 70
Required Job: Available to All Jobs
Description: Agi + 1.
Gangster Scarf[0]
Type: Headgear (Lower)
Defense: 0
Magic Defense: 0
Weight: 10
Slots: 0
Refinable: No
Breakable: No
Required Level: 60
Required Job: Available to All Jobs
Description: Atk + 5.
If equipped on a rogue class character, grants the skill [Gangster Paradise] Lv 1.
Ninja Scroll[0]
Type: Headgear (Lower)
Defense: 0
Magic Defense: 0
Weight: 20
Slots: 0
Refinable: No
Breakable: No
Required Level: 60
Required Job: Available to All Jobs
Description: MAtk + 1%.
Wow, I didn’t know that those were originally jRO Anniversary headgears!
um hi. i was wondering if there are fullbodies of those chibi pictures? theyre just so cute. btw i wanna say a big thank you for all the RO information you’ve shared with us. more power to you ^_^
+1