I tried to get some round med. bottles from my local pharm. but they didnt have any bottles that were any good as far as size.
I found these:
http://www.stevespanglerscience.com/product/1367
I don't think they are the same plastic as the med bottles, and i am afraid the PR will stick to the plastic, which would ruin a "test tube" with each blank.
that company also sells a little zinc sulphide kit (Glow in the dark powder) Even comes with a keychain blacklight which would come in handy for your booth!
http://www.stevespanglerscience.com/product/1586
I found these:
http://www.stevespanglerscience.com/product/1367
I don't think they are the same plastic as the med bottles, and i am afraid the PR will stick to the plastic, which would ruin a "test tube" with each blank.
that company also sells a little zinc sulphide kit (Glow in the dark powder) Even comes with a keychain blacklight which would come in handy for your booth!
http://www.stevespanglerscience.com/product/1586