Almost every guitar player has, at one point, picked up a quarter when they've run out of guitar picks. Unfortunately, they don't work so well because of the sharp edges. Etsy.com seller GuitarPickCollection has created products that blend a coin and a pick. They make all kids of smooth-edged guitar picks out of pennies, half-dollars, quarters and more and sell them on the handcrafted goods site.
It's the end of the world and you have no food. The Survival Seed Vault will help. The waterproof container has 20 varieties of seeds for food such as peppers, carrots, broccoli, zucchini, tomatos, onions, cucumbers and peas that are advertised to cover a full acre. It should have everything you need to replenish your food supply.
Dropping a red-hot ball of nickel into a mug full of water makes for some positively interesting reactions and funny noises. A short video of the experiment has almost 2 million YouTube views now.