About this 3D model

"Sandmation, Acrobat" is a "sand animated" acrobat. As is "Sandmation, Teeter Totter", this is a 3D printed version of an animated toy available for children almost a hundred years ago. Video of prototype is here: https://www.youtube.com/watch?v=PFbVLWH_Ph4&feature=youtu.be. Designed using Sketchup Make 2015, and printed in PLA on a Makerbot Replicator 2 using Makerware 2.3.3.42 "Standard" Settings (.2mm layer height, 2 shells, 10% infill). UPDATE: Added "Hopper, 8mm by 8mm.stl". This rotates the acrobat much faster.