If your workspace is so cold that you will need to put your hand inside one of these, maybe you consider getting a new job. Meanwhile, a USB mousepad warmer might help to keep the deep hyperthermia at a distance.
USB Mousepad Warmer
- Powered by USB
- Warm your hand in the cold area
- Built-in warmer pad
- Size: 240*205*40mm (approx.)
- Weight: 100g
The USB Mousepad Warmer is available from gadget4all for $14.50. (Update: Link removed because the website is gone.)