I recently made some custom action figures for a friend who loves the 2012 Teenage Mutant Ninja Turtles series, but was bummed they had one Triceraton and zero Rock Soldiers in the toy line.
These were all designed from scratch using the Blender 3D software and printed using a Resin 3D printer.
You can purchase the files to print on your own at https://cults3d.com/en/users/Skele-Nate/3d-models