PVC pipe cutter

Marshmallow Shooter

Marshmallow Shooter

Here’s how to make a pair of Marshmallow Shooters. You’ll be ready for combat in minutes! They’re made of standard ½” PVC pipe and pipe fittings, which just happen to be a perfect fit for mini marshmallows from the grocery store. Just fit the pieces together, bring a bag of mini marshmallow ammunition, and start […]

Jellyfish Tank

Jellyfish Tank

A tank of healthy jellyfish is hypnotically beautiful. Unfortunately, jellies can’t live in a regular aquarium because they get sucked into the filtration pumps or trapped in “dead spots” at the edges. This special design creates a laminar flow that keeps jellies safely suspended in the middle of the tank.