Tell us about yourself!
I am highly amused that your supply list does not include the actual glitter. Also, you should know that some glitter is as sharp and almost as hard as glass and can cause eye injury. That is a good reason to only sprinkle when the victim is away. Still, I guarantee you that it will be on the worker's clothes, computer bag, water bottle (which I sincerely hope is closed at all times), etc. Your co-worker will be finding it at home and in vehicles if it's not already. So how did your disclosure go?
Natural rubber sap (rubber tree Hevea brasiliensis is used to make natural rubber latex. Petroleum products degrade natural rubber.