Do It Yourself - Ball Pit
I actually got this idea from a friend. With this Texas heat, this is a great, cheap, and fun thing for the kids to do when stuck inside. Here's how you can make your own: Both items can be bought at Walmart. You will need an inflatable pool. I got Intex 2-Ring Inflatable Pool for about $8. Then I bought a bag of plastic ball pit balls, 100 count, for about $11. And that's it! For about $20, you have a fun activity for your kids to do when going outside isn't really an option.
Enjoy!