I want know some unusual computer gadgets people have seen. I am talking about like devices that could be on expansion cards, drive bays, or usb ports. Basicly anything you could put on a computer without altering the case in anyway.

Some of the things I have seen were an actually cup holder for computers, a toaster that fits in to a 5.25" bay drive, a usb heat/cooling drink pad, a usb mini-fridge (only fits one can), usb-powered fans, etc.

what other kind of crazy or unusual computer devices have you seen?

Engadget keep a whole running feature on this (tag: crapgadget)
http://www.engadget.com/tag/crapgadget/

USB Volcano…
http://www.gadget4all.com/prod_detail.php?prod_id=00485

USB Cabbage…
http://www.gearlog.com/2008/09/the_fiberlicious_usb_cabbage_f.php

USB Whack-it…
http://www.unplggd.com/unplggd/usb-deviceaccessory/usb-whack-it-not-as-naughty-as-it-sounds-060117

USB Air-purifier…
http://www.sourcingmap.com/usb-fan-with-negative-ion-air-purifier-ionizer-p-18037.html

USB Back massage…
http://www.everythingusb.com/usb-back-massager-15117.html

USB Crystal Ball…
http://www.gadget4all.com/prod_detail.php?prod_id=00085