This YouTube channel proves the art of the parlour trick is alive and well. Brusspup has reeled in almost two million subscribers with optical illusion how-tos and science experiments. Here are a few you can try this weekend.
Tonic water contains an alkaloid called quinine that glows under a black light. But your friends will think you've been stockpiling radioactive Ninja Turtle ooze.
Ten ways to make a piece of paper way more interesting:
Learn how to let this wild ring thing loose in your house -- all it takes is styrofoam, sandpaper and a glue gun.
And finally, combine dry ice, dish detergent and glycerin to turn your living room into a cloud-filled dream land.