Parts Altoids Smalls tin  ($1-1.50) Electrical Tape Wire (any type will do, I used magnet wire because I had some) Coin Battery Holder ($.75) Coin Battery (10 pack for $3) Two 3mm White LEDs (100 for $8 off ebay) Two 3mm LED holders (30 for $2 off ebay) Two resisters of value less than 100 ohms (100 for $2 off ebay) One Submini Momentary Pushbutton switch... or toggle! (2 for $2.50 at Radio Shack) Legos, Upcycling, Gadgets, Led Flashlight, Aid Kit, Survival, Altoids Tins, Handy, Lego