hanging vials
American Science & Surplus
hanging vials (6 pack clear hanging plastic vials) item # 94528P1
“We're thinking a jogger's pill-holder for this clear acrylic vial with a black, flexible, non-gasketed screw cap. It's 2-7/8" long x 11/16" dia with a 3/8" loop on top so you can hang it on a keychain or lanyard. You get a 6-pack. Share them with other joggers, or with other party animals. (You can always fill them with glitter for emergency whoopee needs.)”