Choose a spirit made of 100% agave, stock your bar with a solid orange-flavored liqueur, squeeze fresh lime juice think of how strong your forearms will get!

WSJ: Mastering the Margarita

Next to each listing is a colored bar showing each stock's up-to-the-minute price.

FORBES: Dangerous Curves

Inside there are just three stainless-steel ball bearings, housed in anodized aluminum bar stock.

FORBES