Granted, this isn’t the most elegant solution, but embedding LEDs in cake sounds like the makings of an awesome birthday party to me.
The guys from Hack-a-Day made an attempt to insert a LED countdown timer into a cake, and they learned a couple of things in the process. First off, making custom LED effects for a cake requires more effort that its worth. Second, they learned that they can’t bake for sh*t.
Check out the completed cake in action after the break.