I love the natural art materials the earth provides this time of year! My four-year-old daughter and I have been having a great time making all sorts of things with acorn caps, such as tiny acorn cap candles, felted wool balls with acorn caps on them, and little fairies acorn caps for hats. This time we created acorn cap "jewels."
We've had lots of fun playing with them since they were made. They've become jewels for indoor and outdoor treasure hunts, pretend "money" in store-related play, and tokens used in our own game of memory (flip them upside down and try to match the colors and remember where they were--if you want to play this, be sure to make two of each color.) The uses are as endless as your child's imagination, and when you're finished playing with these little gems, they bring such a autumnal decorative touch sitting out in a bowl in your home.