This post on reddit reminded me how awesome homemade grip strength tools like baseballs, tennis balls and softballs are.
If you have ever been to a climbing gym you probably have seen these things before. They are a cheap, but valuable addition to your home gym.
Click here for a tutorial by Ross Enamait on how to build your own.
You don’t have to restrict yourself to just softballs. Try hanging different kinds of odd objects to keep things interesting.