These Narwhal Slippers are USB Heated

Narwhal USB Heated Slippers by Thinkgeek:

The majestic narwhal shares the secrets of warm feeties with you (even though it doesn’t have feeties – it’s super talented). A secret that people will swear you made up, but in fact is very, very real – much like the actual narwhal. Plug them in and heat them up.

[Narwhal USB Heated Slippers]