Three Dolfin models, Two of which are keychains, and the other one is the parenting dolphin model I made first. The "Dolphin_keychain_Nametag.stl" is a nametag-like keychain, so you can modify it with a program like 3D builder to put your own text on it.

How to print The nametag can be printed with the flat face (with text) on the build place. I rotated the dolphin around 15 degrees for the other two models so that the back fin and the noise touch the build plate. And so it requires quite a bit of support.

I printed these models with a bit too coarse print settings when printing it yourself, note that the back fin is quite thin and might need more infill.