British boutique ice cream maker Lick Me I'm Delicious (yes, that is the company's real name) recently released a glow-in-the-dark ice cream that uses a luminescent protein from glowing jellyfish. The idea? Lick the ice cream and calcium-activated proteins react by glowing, thanks to differences in your mouth's warmer pH level and the ice cream's more neutral pH.

If you're tempted to see if glow-in-the-dark ice cream merits glowing praise, be forewarned: a scoop will set you back about $220 in sweet change. Turns out jellyfish protein isn't exactly cheap. But no worries: Charlie Harry Francis, the food scientist who invented the treat, assures foodies that it's safe for consumption.

The glowing frozen dessert made us wonder about other instances of