The “RoToMoTo” Rotating pencil holder / pen cup holds up to 49 items, including 6 open slots for larger items. Requires two 608 bearings (typically used for inline skates or skateboards) Accepts up to 13.5 mm diameter objects. 3 parts: base, spacer (goes in between bearings) and the top. Designed in Tinkercad. Video posted HERE
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