Geek Gifts for the Top 1%: The External Combustion Kraftwagen
Most geeks are familiar with the idea of a Stirling External Combustion Engine. Now, you can own a working model Stirling Engine in this External Combustion Kraftwagen from Hammacher Schlemmer. Built from machine-tooled brass, stainless steel, and aluminum, and powered by an alcohol-burning engine, this model can putter around for up to 20 minutes without refueling. This item sells for $999.95.