A few weeks ago, I grabbed a baby pool on clearance at my local Walmart. I couldn't beat the price and I since I needed to take a part the pack and play for our vacation. The balls needed a place to go.
This also gave Baby E a little more freedom while playing with them. She hated being confined. Plus, she has the opportunities to throw her balls and roll out whenever she feels like it.
A cheap and easy play toy that barely cost $5.00.
Now, all I have to do is teach our puppies that they can't sneak into her room and steal them whenever they want. They are obsessed!