I got used to these clear 2oz. cups used for mixing resin. I used to get them for $3 for a pack of 50, but then my (at the time) local hobby store closed. I've found a supply online at a hobby rocket outfit - 6$ for a pack of 100. The caveat is no covers so unless you transfer contents to an airtight container, these are only 'per session'. I mix paint in these and place in an inverted rattle-can plastic top so it won't tip over, and discard when done. Cheers.
fredman out -