Cell Phone Strap for Gamers

Strapya has an extensive collection of charms to attach to your ketai including one called Revolve Game which has pinball, space hockey and car racing (to name a few) all packed into a 55mm x 40mm micro package. The unit runs on two LR44 batteries and has an auto power-off function that shuts down when idle for 3 or 4 minutes. It comes in 10 colors and has 99 levels of play - on the black & white screen - for only 680jpy.

For those with slightly more expensive tastes, also see the solid gold 30,000jpy wild boar strap. Via the always interesting Tokyo Mango.