I come across a couple of sites here and there and just figured i would keep a post that i update with the random stuff I have used it for....
http://www.marauderinc.com/servlet/StoreFront
Everyone knows this one, but for the sake of being complete...
Lockers, Chairs, Guns, Guns, Guns,...and so on...
http://www.tapplastics.com/shop/category.php?bid=24&PHPSESSID=200712311056071655601827
They sell Acrylic by the sheet. But if your like me and dont want to cut acrylic or use actual glass in your sets....this web site does 4"X4" samples for 2.00. great size for all kinds of things.
http://www.testtubesonline.com/6_inch_16_5x150_mm_Polystyrene_Plastic_Test_Tubes_p/207-0033cw.htm
They sell plastic test tubes in all color and sizes. The great thing is you don't have to buy 500 of them at this place. you can just order a couple for dimes. I ordered some glowing green ones to use for a mindbender lab.
http://www.barproducts.com/index.php?link=Trays_zg_Fun_Drinkware.php~item_Chaserzgzd8482zr_Shot_Cup_CSGznS
This place just has an assortment of small containers for all kinds of uses. I find buying from a Bar place for the exact same container a manufacturer has will cost 1/3 of the price. (plus not logos or such on these.
I will add more as I come across and have a need for them.