Given away during the 2005 Halloween event to users who earned 250 points in game, or if you purchased certain avatars on a specific date.
Sold for $4 in the avatar shop for a limited time during October/November 2006.
ijji: Given away during the 2007 Thanksgiving event. From November 20th - December 5th if you completed the Hangman Puzzle and spelled the word "Thanksgiving" before you got six “Hangman” characters you would receive this item.
Softnyx: Sold for a limited time during the Gunbound Christmas Event. From December 13th, 2007 - January 3rd, 2008 you could purchase this item from the Gunbound event page for 4,000 cash.
ijji: Sold for a limited time during the Gunbound Christmas Event. From December 19th, 2007 - January 9th, 2008 you could purchase this item from the Gunbound event page for 40 G Coin.
Softnyx: Available for a limited time from December 9th, 2008 - January 6th, 2009, during the 2008 Gunbound Christmas Event. (***Also known as the: "Hey guys lets sell almost every single rare avatar for cash event!!".) This item(s) could be purchased for 2,000 cash in the Gunbound Avatar Shop.
***Unofficial Title.