Just a simple model of a spudger that uses replaceable tips for when the plastic wears down and to use different tips. The body has a chamfered opening so it may be too tight or too loose depending on the printer, scale the tips if required.

To make additional inserts I made the tips to be a triangle of radius 5.5mm or sides 9,526mm, and a length of 35mm.

There are also guitar picks for fun.