Swedish band The Shout Out Louds released a limited edition of 10 promos for their new album that consisted of latex molds that you filled with distilled water, froze, and played on a turntable:

"We talked to professors at different universities telling us it would never work out, so we had to develop the technique ourselves," he says. After receiving a negative imprint of the song's master cut, they started experimenting; the office became a kind of amateur chemistry lab, and the team spent hours testing different types of liquid, various drying techniques, and multiple kinds of molds.

"One of the biggest challenges was that the bubbles made the ice cloudy and messed up the tiny tracks, which made the needle jump." Further trial and error revealed that using distilled water did the trick, giving the final product a nice clarity and even surface. Another insight? Time is not, in fact, on your side when working with a frozen substance; functionality and sound quality diminish immediately once the melting starts. A silicone cast allowed for quick and easy record removal, essential to ensuring it could be used straight out of the freezer.