What you'll need:
Legos (or any small toys that are different colors)
Paper lunch bags
Take the lunch bags and color the top of each one a certain color (we used 6 bags and colored them red, blue, yellow, green, orange, and black).
Use the legos (or any small toys like cars or whatever you have in your home) and let the kids toss them into the bag of the corresponding color.
This was such a simple idea, we had everything we needed in the house and Evie played for about an hour. It's perfect for a rainy day!