A reusable 3D printed version of the common marker stickers. The backside has a cavity for a small amount of BluTack.

The model is 10mm outer diameter with a 5mm diameter inner dot, 1.6mm tall

Simple to scale diameter and height. Some scanners may benefit from larger or smaller Marker Coin diameters.

Benefits from Multimaterial printing! The inner circle on both side is a separate surface that can easily be assigned a color (white).