smooth-dealer via eBay offers this Mini USB Desktop Aquarium with LCD Display
with free shipping
. That's tied with last week's mention and the lowest total price we could find for a comparable item by a buck. It features an LCD display with calendar, time, and temperature functions, six sound effects, LED lights, water faucet, and more. It requires three AA batteries (not included).
Expect this item to arrive in two to four weeks.