For those who are always asking Wiede, "where did you get that neat ...," here are some answers:

LiveWire -- Semiconductor cable lights.

Edmond Scientific -- miscellaneous fun items.

American Science & Surplus -- miscellaneous fun items. sometimes they have the blinking lights to mount on buttons, but this is surplus so you never know what will be in stock!.

Dr. Don's Buttons -- button-making equipment & supplies, also can order ready-made custom buttons.

WebSticker -- custom stickers.