EVGA has their EVGA TORQ X10 Carbon Gaming Mouse and Laptop Backpack in a bundle deal for $29.99
Price including tax and shipping came out to $34.78 for me. May vary depending on postal code.
I was able to purchase two.
From Manufacturer Page:
EVGA TORQ X10 Carbon Gaming Mouse - Customizable, 8200 DPI, 5 Profiles, 9 Buttons, Ambidextrous