Jefferson Variety Stores is the largest supplier of unique Mardi Gras Beads, Novelties and Costume Fabric in South Louisiana.
If you've never been, you ought to check them out. Lots of raw material for costuming.
239 Iris Ave.
Jefferson, LA 70121

Save On Crafts interesting retail site for leds, fibre optic, el wire and all manner of personal lighting.

American Science and Surplus - a geek's online paradise for all kinds of surplus kind of items. Lab supplies, militaria, lighting and wiring supplies, motors, optics, etc, etc.