About this 3D model
This is a cello stop in the shape of a small cello. It has 3 different types and sizes of holes for use with the different cello endpins. It's a 2 color print, but you could easily do it in a single color. Actually, you could do it in as many colors as you want if you hot swap the filament mid-print. It's based on my previous "Cello chair strap stop", but with a different stopper, based on a commercial stopper made out of wood and shaped like a cello. You could replace the ring that goes around the chair's leg with this carabiner I made, http://www.thingiverse.com/thing:587020.