We've recently got in a shipment of rimless nano tanks, with a couple models of the new Iconic Mirror Tanks from Up-Aqua (we're one of the first retailers in SoCal to carry this).

There are also plenty of accessories/supplies for nano tanks, including driftwood, substrate, filters, etc, etc. 

These nano rimless aquariums are perfect for your office or even on a small shelf in your home.  Perfect for those that don't want a huge tank that'll take up too much space but still look aesthetically appealing.