Ice lamp

Today I'm gonna talk about a cool and simple project: an ice lamp.
To start you need:
-rubber balloon           
-1 LED
-some wires
-a 9v battery








First of all solder or connect in any other way the LED with you wires.
Then fill the balloon of water and put the LED with its wires inside (some water should get out).

 Now put the balloon in a freezer for about 3 hours.

After 3 hours connect your wires to 9v battery and the LED should light up.

Here are some photos of the final result: