Plastic Double Shot Glasses

shot glasses
(Shot glass) Used for serving shots and layered cocktails. Cocktails in shot glasses are meant to be drunk quickly, in one gulp. The ideal option for busy and lively parties. Standard volume 40 to 60 ml.
A small glass used for serving liquor
(shot glass) a small glass adequate to hold a single swallow of whiskey

plastic
A synthetic material made from a wide range of organic polymers such as polyethylene, PVC, nylon, etc., that can be molded into shape while soft and then set into a rigid or slightly elastic form
Credit cards or other types of plastic card that can be used as money
capable of being influenced or formed; "the plastic minds of children"; "a pliant nature"
fictile: capable of being molded or modeled (especially of earth or clay or other soft material); "plastic substances such as wax or clay"
generic name for certain synthetic or semisynthetic materials that can be molded or extruded into objects or films or filaments or used for making e.g. coatings and adhesives

double
Consisting of two equal, identical, or similar parts or things
Designed to be used by two people
Having twice the usual size, quantity, or strength
a base hit on which the batter stops safely at second base; "he hit a double to deep centerfield"
downward and forward; "he was bent double with pain"
having more than one decidedly dissimilar aspects or qualities; "a double (or dual) role for an actor"; "the office of a clergyman is twofold; public preaching and private influence"- R.W.Emerson; "every episode has its double and treble meaning"-Frederick Harrison