Hot MacGyverisms Posts

How To: This DIY Pneumatic "Mauler" Fires 300 Ping Pong Balls Per Minute

Here's an awesome weekend project that could leave you with a fearsome "Ping Pong Ball Mauler" capable of firing hundreds of balls a minute at your unsuspecting neighbors. Christian Reed built it out of a poly drum and a homemade pneumatic device. He turned a standard shop vacuum into a high volume, low pressure system that allows his contraption to continually fire a constant stream of ping pong balls at a rate of hundreds of balls a minute. Best of all, all of the parts he used can be bough...

How To: Make a Cheap and Reliable Suction-Based Bike Rack for Your Car

A bike rack that's lightweight, small enough to store in your car, easy to build at home, and only costs 50 dollars sounds to good to be true, right? It's not. This guy built a suction-based bike rack in just two hours with only his jigsaw and a drill. He built the contraption using off-the-shelf suction handles, plastic cutting boards, and a commercial fork mount. All-in-all, it cost him just $44 for one mount and less than $100 to add in a second mount and a rear holder. You can find his fu...

How To: A/C Broke? Keep Your Car Cool with This DIY Solar-Powered Air Conditioner

If a solar-powered air conditioner that requires no electricity or moving parts sounds to good to be true, well, then you're not as ambitious as this clever high school student. Instructables user Fozzy13 put together an awesome DIY tutorial on how he built his own air conditioning unit in his car that works using the principles of evaporation, convection, and capillary action. This air conditioner works by using sunlight to heat air at the bottom of the unit. The hot air rises, allowing the ...

How To: 50+ Creative, Useful, and Unnecessarily Dangerous Ways to Open a Beer Bottle

There's nothing worse than holding an ice cold brewski on a hot summer day and having no way to open it. If you're a Bud fan, you'll have no problem opening the bottle because most mass-market beers have twist-off caps. But if you have a taste for finer, more expensive brews, you'll more than likely run into the pry-off caps. Pry-offs are used mainly because companies believe it provides a better seal against one of beer's greatest enemies—oxygen. Plus it's a cheaper alternative for craft bre...

How To: Start Fires in Style with a Glass Matchjar, Plus 9 More Clever Uses for Mason Jars

Mason jars are a DIYer's best friend, nearly on par with duct tape and paper clips. Why? Because you can use mason jars for so many things besides just canning and drinking, and I'm not talking about other obvious uses like basic storage containers or miniature terrariums. I'm talking about MacGyver-style ingenuity. With a little creativity, the uses for those jars are practically endless.