Being a former Kumon student and current Kumon employee, I thought that this would be a nice little addition to the workplace. It also exposes children to 3D printing and how they can apply the skills they've learned at the center. Looks great in the office!
Note: No copyright infringement is intended. The above was created for creative purposes only.
This really doesn't need to be that complex, so I just printed with a 0.4 layer height and a 10% infill. Feel free to print how you like. Post a make if you can!
Thingiverse account: https://www.thingiverse.com/Sh0rt_Stak/about