Rub'n'Buff Screw cap that doesn't split

I like Rub'n'Buff for adding metallic effects to parts - but I hate the rubbish plastic caps that ALWAYS split which lets the stuff dry out.

Simple resin printable cap replaces the rubbish ones.

Depending on your printer/resin/temperature etc. you may have to scale it +- a couple of % to make it fit.

Nuff said really.