Pump clip to connect broken metal clip to insulin pump. Commerical replacement costs 20 USD plus shipping and handling, this makes use of the stronger part of the original clip and just replaces the clip to insulin pump connector (which is the part that always breaks). Saves nearly $20, cost to print is <$0.05.
Second OpenSCAD/STL file is untested, designed to fit into the pump a little better and prevent the clip from slipping out as much as it currently does with the first design. Still better than nothing.