Newegg has the Cavalry EN-CAUG-W Aluminum 2.5" External HDD Enclosure (White) for $4 + $2 shipping ($0 shipping w/ ShopRunner) = $6 shipped
. Black (EN-CAUG-B)
and Yellow (EN-CAUG-Y)
are also available for $7
with free shipping. Features a slim and fanless design that cools your hard drive with its aluminum construction.