Boiling an egg to a specific consistency is a more exacting science than finding the Higgs Boson. But drop the PiepEgg in your pot and you'll be guaranteed perfect results when you hear one of three classic rock tunes.
Instead of just counting off a set amount of time, the PiepEgg apparently uses a thermometer to measure the temperature of an egg yolk as it hardens. And depending on the consistency you're after, it will play one of three different songs letting you know they're ready. Smoke on the Water for soft-boiled, I Was Made For Lovin' You for medium-boiled, and The Final Countdown for hard.
It's totally worth €20 (about £16.50) if it can guarantee my eggs come out with a runny, molten core. And if classic rock isn't your thing, there's also a pink disco version that plays Celebration, That's The Way (I Like It), and Last Night A DJ Saved My Life. [Design3000 via bookofjoe]