I am trying to find out what type of lights are used when put inside cake and jello molds. I saw this done on an episode of Ultimate Cake Off and would really like to add it to a cake for my daughter's fall festival @ school. I haven't had any success researching it online. If anyone know I would really appreciate the help. THanks

I bet you can find all sorts of lights now at a crafts store like Michael's or Hobby Lobby or maybe even in the craft dept at WalMart. Those lights are called LEDs. A friend of mine has an online store with all kinds of stuff like that.

http://glitterbuglights.com/index.html

I also found these LED icecubes, suitable for actually putting in a drink. So stands to reason it would work in jello.
http://www.flashingblinkylights.com/lightup-products-lighted-cubes-c-114_77.html?gclid=CI2r4t3ZwJ0CFZJM5Qodo0wlrw

Also, I was thinking about this and I remember seeing on Ace of Cakes they used LED earrings for twinkling stars on a dark blue night sky cake, it was gorgeous.

I always question if adding lights is sanitary. I mean, can lights actually be washed before they're put into Jello, onto cakes, etc.? Just wondering.

Thanks for your help, I am not sure why I didn't think of LEDs. I will not actually be using them in a portion that will be eaten, it is simply to make the cake draw attention due to it's uniqueness. I am sure it wouldn't be something anyone would want to eat.