mason jar drink cups - I no sooner pinned it, then came across this idea for using mason jars as drink jars. Downside is that they are paper lids. Can make lids out of plastic placemats from dollar store though.
BNTO Canning Jar Lunchbox Adaptor - Wide Mouth - 6oz - Mint
Keep blooms standing upright with a flower frog lid. The lid is specially designed with a grid to hold stems in place giving you a simple way to organize them. Check out the other 9 brilliant mason jar hacks