I was inspired to throw together all of the Knuckles The Echidna-related stuff that I can find in my room (including any stuff that has his picture.) I guess there are a couple random missing things (like a Happy Meal toy that I got long ago: [link]
) but this is just about all of it. I'm such a nerd. =/
It was bought several years ago at Hot Topic - it's no longer available. There was also a hoodie version.
Jazwares Toys R Us Exclusive (it's from several years ago.)
Jazwares Super Posers
Jazwares Toys R Us Exclusive 200th Issue Comic Book Pack with translucent blue Sonic
The top left one is made by Jazwares, and it's available at Toys R Us now.
The top right one is made by Great Eastern Entertainment Co. Inc., and it's available at from f.y.e.
The bottom right one is made by Sanei Japan, and I bought it at the New York Comic Con several years ago. It's tough to see, but he's holding a Master Emerald-like gem that I bought at a rock shop in Utah: [link]
Knuckles The Echidna Archives, Volume 1
Knuckles The Echidna #1, #2, #3, #4, #5, #6 and #7
Sonic The Hedgehog #140, #141, #166, #167, #232 and Free Comic Book Day 2007
Sonic Universe #5, #9, #10 and #11
Sonic Mega Collection for Gamecube
Sonic Adventure 2: Battle for Gamecube
Sonic Heroes for Gamecube