Summary

In my lab we sometimes make up small amounts of nasty things (osmium tetroxide, epoxies, etc) in disposable scintillation vials. But we have no holder, and they can get knocked over, creating a spill.

This holds two standard vials and has a cutout so that you can read your GLP-required vial label. It's harder to knock over by accident.

Print in PLA so it's resistant to acetone. Science!

Update: updated an improved version: the edges are filleted and the two vial holders touch for more durability.