Modular Sand Castle (Work In Progress: More parts to come)

This is a collection of molds that interlock together, enabling the creation of larger sand castles. As to be expected, the function of these toys is to be filled with wet sand and turned over to create sand castles with ease. The pieces interlock with a simple peg and hole mechanism. The parts are made of a cheap and strong ABS plastic, finished with a dark green paint, so they are lightweight, cheap, last long, and can be 3D printed. These parts were created in Autodesk Inventor 2016 Professio