Uncle Eel's 36 Hour Switching Trowie

So, I wanted to make some throwies for pumpkin carving but don't like a few things about them.
1) I measured the LED hooked up to my 3V batterie at 50mA. For my 180 mAH charge that would only give 3.6 hours

2) Pumpkin carving will be the day before Halloween, so I wanted a switch.

3) Using tape to preload the LED wire to a flat surface is not reliable.

So adding a 220 ohm resister should give a 36 hour light, I measured 5 mA (From Evil Mad Scientist Laboratories).

Solving the other problems went something like this:

Placing 2 pennies over the LED/resister leads to preload them to the battery


Using a rubber band to hold the LED lead against the resister with the penny backing it up.

Anyway, that's just my 2 cents.