You can store 8 pencils in the Cute Unicorn, bassed in the dessign by Zacleung, slized in two parts and added the holes for the pencils.
Use Supports to print both pieces.
Depending the size of your pencils you can scale it a bit. You can pause the print at the begining and test the holes and see if they are big enought for your pencils, The holes should be tight enought to keep together.
*Updated: Back model version with full holes added to allow to use pencils with different lengths.
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It's very important to print it with supports.