LEGO Pin Insertion Tool

I was running some LEGO® Technic™ projects with very young kids (under 3) and found out, that their fingers didn't yet work very well with inserting LEGO pins, especially in harder to reach places. So I've designed a tool that helps with pushing LEGO pins into places.

This is very easy print, very tolerant to layer thickness, the only thing is your printer shall be halfway properly calibrated in the XY dimensions, so that the pin has the right amount of friction in the tool hole.