The collector basically looks like a tennis racket filled with ice cubes, so this is kind of like a big ice-cube tray, and each ice cube is not made out of ice, but it's made out of this aerogel.
Skeleton looks like something straight out of Willy Wonka: Hurtling face-first down a frozen track on a sled that resembles a cafeteria tray, Ms. Uhlaender often tops out at 80 miles per hour with her chin inches from the ice.