The Disney Family Fun ball project is ideal for children's play and is simple to make. The nice thing about these beanbags is that they are lightweight, and best of all you can get the little ones involved in putting them together.
The materials needed include some colored balloons, dried lentils, scissors and a funnel. You fill up a balloon with the lentils, and then cut the tip off of a second one, and overlap it, and then repeat the same thing with a third balloon for extra protection, which acts as a seal.
These beanbags would make for affordable children's party favors, and would also make for a great craft idea for elementary teachers on a tight budget.