Lighting implements. I have a variety of lighting implements I use, some of them homebrew, some of them off-the-shelf.
Hotshoe flashes for a Canon G7 or S5 IS
Two recent high-end Canon P&S cameras that seem to be popular with the buying audience have hotshoes. The G series of Canons have always had a hotshoe, but the S series hasn't until now.
Hands
Dona lightpainted with South Bay as the backdrop.