I designed this to hold all the pencils from a standard crayola colored pencil box of 50. It will hold other pencils, as long as they're around 7.5mm. Each hole is 8mm wide.
No supports needed.
If you'd like this in a bigger or smaller count, let me know an I'll upload one!
If you want this printed, let me know! I'll send it to you in any color for $14 + shipping