Gatorade experiment

This may seem gross and immature but it's really cool for grossing out your wife and kids for free. Go to a local store and buy a few bottles of Gatorade Fierce grape flavor drink. It may take a few days of drinking this flavor but after a couple of days you will notice as you use the bathroom, your #2 (poo-poo) will appear green in color. After a few more days of continuing to drink your Gatorade, your (poo-poo) will appear almost like a neon color of green.

At this point, call the wife and kids and freak them out. Unless you have boys who want to try it out as well. Plus everytime you go to the bathroom, they'll want to tag along to see the results.