You can use it!
Original model: https://www.models-resource.com/mobile/spongebobspongeontherun/model/9740/
Rig got messed up a bit. Fix it if you'd like. I can't wait to see what you make with this or a fixed version of it!
This is my first rig, so let's keep it simple! Fingers and most facial features ARE NOT RIGGED...
This is a raw .blend file that only works for Blender 2.93.1 or later. Sorry about this...