A Bottle of Pee. Any kind of bottle , you may pee in.
Usually made to be drank by another for prank or thrown as a bomb.

person "A" needs to pass a drug test for probation, or to be hired for a job, so person "A" asks person "B" who is drug free, to pee in a bottle and then person "A" hides the bottle on his person and then when its time for him to pee in a cup, he pours the pee from person "B", and then hands it off to the doctor/nurse in the facility.