Bartending.com: An Online Community For Bartenders

Safety Tip: Blow out the shot before you drink it.

Creativeware Designs - The Most Creative & Unique Glassware, Barware, and Drinkware in the world.
Glacierware Mfg. Inc. - Home of the Slush Mug, Frosty Mug and Iceless Wine coolers
IBgifts - Crystal Bar Glasses and Stemware - Offering a collection of crystal bar glasses, white and red wine glasses, shot glasses, and more.
Libbey, Inc. - Supplier of tableware products in the United States and Canada.
Quaffer.com - Home of the Quaffer, the shot glass with a built in chaser.