Gridfinity holder for a 30ml bottle. I use mine for IPA but it's also useful for acetone, glue, or whatever liquid you need in a medium amount on your bench.

The bottle is 30mm in diameter and the holder height is approximately 20mm.

These are the bottle I used: 

30 ml/cc Bottle with Needle Tip for Glue/Flux/IPA/Acetone/Alcohol/ect : https://www.amazon.com/gp/product/B07M5NL9LL
but any 30mm diameter (mine happen to be 30ml/cc) should work.