This is the thread where you can suggest custom pets that ranges from TF2 props as pets to Garry's Mod stuff.
Just don't spam the thread with 3 posts. You can provide images for what pet you want on the server, but don't think it'll be added in the next update. This is a thread made for suggestions, not for definite adding.
To start it off, I wanna suggest Darkbelle and Retrobelle. Retrobelle from DR_Retroland_Fix and Darkbelle from DR_Psykopat. A small and funky little assistant and a very dark and gruesom assistant.