Tennis Ball Jar Opener
Have some dead tennis balls around the house? With a little bit of cutting you can easily turn one ball into a pair of jar openers. Check it out.
Stuff
All you need is a tennis ball and a knife. Any sharp knife will work, but a shorter blade is preferable so that you're less at risk of cutting yourself.
Cut!
Take the trusty blade and cut the ball along the seam. Be careful here since you'll be turning the ball around a lot. I made lots of small cuts here. You won't save too much time here by speeding things up anyway.
Done!
Presto! A pair of jar openers. The rubber inside grips nicely on metal lids, making it a lot easier to open a jar up.
Decorate It
Add a couple of dots and your little jar opener has some more personality! No effect on the effectiveness, but it's more fun.