Josh Harris at The Fun Times Guide to Living Green shares the awesomeness that is Jelloware…and yes, it is a real product.
The cups are made entirely out of a substance called agar agar. Agar agar is a gelatin-like substance that originally comes from red algae. I know what you might be thinking “Eat a cup that is made of Algae? Heck No!”. So, for you haters out there, I encourage you to remember that those tasty portobello or button mushrooms that you might love so much are actually fungus.
If you don’t feel like eating the cup, you can actually just toss it in the grass. Yeah, you read that right. The cup has an extract of seaweed in it that actually has nutrients that support the growth of grass and plants.