Free 

Wanted a pencil holder that spoke to me and wanted the practice with F360. I got inspiration for the nucleus on the side from The Simpsons. Simple print.
Should've made the seams on the back. I printed it with no infill, no top layer, and some layers on the bottom for the base. No need for any supports. I scaled it to be about 110 mm tall so pens don't just fall in.
Print it however you want. It's your printer, you know it better than I do.












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