Introducing The Shot GlassCard. A birthday card that allows for immediate celebration. Available in two formats: The Bottle Hanger Card: The card features a diecut circle at the top to attach it to all sizes of bottle (even the enormous Absolut bottles if you mean serious business). Regular A2 Card w/ Envelope: If you know the party you are going to is already stocked, perhaps just going with a regular card is more in order. Each A2 card comes with a matching Whip Cream envelope and no top section to attach to a bottle. Each shot glass is assembled origami style without any additional elements. It holds approximately 1oz of liquid without leaks for hours.