Beer always tastes better from a nice, frosted mug. Sometimes though, a frosted mug isn’t around. That’ll never happen with this Beer Glass Froster ($400). It chills beer glasses in 10 seconds. A blast of cold air from a connected CO2 tank does the job. Why stop at beer glasses though? Chill those little bouncy balls sold in gumball machines and throw them at friends. Or cool down on a hot, summer day by sticking your head under the spout.