Here are some pics from a recent class I taught. We did all of our "painting" and printmaking using items that would produce a dot. We first talked about Pissaro and Seraut and pointillism and then started with index cards and toothpicks.We worked our way up to larger cards and q-tips, paintbrush tips and crayon tips.
Then we got bigger and used the rims of cups and glasses and I passed out the parts of a chopped up swim noodle.
Things got a little wacky when we tried dotting our papers with marbles. The marbles took on a life of their own and produced some nifty experimentation! Have fun and don't limit yourself. Have your wee ones go on a circle hunt in the house to look for household items that would produce a circle. Start with a reading of the dot and have fun!