Moveable Minecraft Axolotl.
Most parts print in place, excluding 3 fins.
The model is parametric. If you ran into tolerance problems you can edit "Tolerance" value in the spreadsheet in the FreeCAD model file and re-export. Make sure to select all parts excluding fins before exporting.
Fins should be printed horizontally. After printing, bend the fins to insert them into the 3 slots on head.