I'm too lazy to list the non-OC characters this year so I'll just list the oui-OC ones

Gianello: https://www.furaffinity.net/view/52209385/ (These two can be paired up)
Knifelegs: https://www.furaffinity.net/view/52209385/

Lyosha Vilovich: https://www.furaffinity.net/view/44409579/ (These two can be paired up)
Davey Gutierrez: https://www.furaffinity.net/view/49777526/

Lervey: https://www.furaffinity.net/view/51448467/ (These two can be paired up)
Bjelgen: https://www.furaffinity.net/view/51608390/

Murray Callahan (My fursona): https://www.furaffinity.net/view/54147003/
Moogy: https://www.furaffinity.net/view/53722332/
Gordibarg: https://www.furaffinity.net/view/54293085/
"Taylor Hawkins": https://www.furaffinity.net/view/55244938/
Any of these 4 bastards: https://www.furaffinity.net/view/52830873/
Ros and/or Krantz: https://www.furaffinity.net/view/54308026/
Beruri the Alien: https://www.furaffinity.net/view/51268786/
Buddy Beauclaire: https://www.furaffinity.net/view/47662541/
Chawley: https://www.furaffinity.net/view/47987243/
Parnell: https://www.furaffinity.net/view/51164464/
Delvino: https://www.furaffinity.net/view/51181027/
Sweater kitty i guess: https://www.furaffinity.net/view/49910733/

Oh, and modified bears (modbears) are also acceptable

Edit: Oh, and ALSO, you don't have to do anything 3D I guess