150 count pen/pencil holder

My daughter got a 100 pen kit for xmas and needed a better way to hold all her pens and pencils. This is a simple design that holds 10 rows by 15 columns of pens (150).

Printed on Prusa MK2 with zero infill.

Designed in OnShape.
https://cad.onshape.com/documents/cf1abcf41d004273a6c4dcd8/w/8ec1bae44da185c63f3ec407/e/3b6fc21228f547770f90c0e2