18. Speaker

This is possibly the coolest DIY project on this list. When your ordinary speakers just aren’t loud enough, a Mason jar might be perfect for the job. A Mason jar speaker requires a speaker kit that you can buy from audio stores, and also a solder and a soldering iron. It also calls for some electrical DIY know-how, but isn’t at all hard to assemble. A DIY noob can get it up and going in just about an hour. Sounds awesome, huh?

Via hellodenj.blogspot.com

19. Office Caddy

Make your work cubicle neat and organized with a Mason jar office caddy that takes less than 5 minutes to assemble. Hot glue Mason jars together, wait to dry, and you’re set. How impressive is that?