Step 1: Materials List

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Intro: LED Throwies

Image Notes

1. over 270 LED throwies

LED throwies consist of only a few inexpensive parts and can be made for ~$1.00 per Throwie. You can reference the parts list below or download the attached spreadsheet for more info on parts, part's numbers, vendors and application notes.

Part: 10mm Diffused LED Vendor: HB Electronic Components Average cost: $0.20 avg per LED Notes: Cost reductions for larger quantities. Comes in red, blue, amber, white in both diffused and clear. Diffused works better than water clear for the Throwie application. HB has even created a Throwies packs page with deals on 10mm LEDs and lithium batteries!

Part: CR2032 3V Lithium Batteries Vendor: CheapBatteries.com Cost: $0.25 per battery Notes: Cost reductions for larger quantities. With the 2032 Lithium batter, depending on the weather and the LED color, your Throwie should last around 1 -2 weeks.

Part: 1-inch wide Strapping Tape Vendor: Your local hardware store Cost: $2.00 for one roll Notes: One roll will make many throwies

Part: 1/2" Dia x 1/8" Thick NdFeB Disc Magnet, Ni-Cu-Ni plated Vendor:Amazing Magnets Cost: $13.00 per 25 magnets Notes: Cost reductions for larger quantities

Part: Conductive Epoxy Vendor: Newark In One Cost: $32.00 Notes: The epoxy is optional.