I don't remember where I got this from...sorry. Since we are talking about the number 3 I had them count out 3 marshmallows and then 3 toothpicks and showed them that they can stick the toothpicks inside the marshmallows and build something. They didn't build for long...they wanted to eat the marshmallows. lol
Train Puff Cloud Counting- I got this awesome idea from Teaching My Little Bookworm.
Here is the print off.