Save all those plastic milk caps, bottle caps, and lids to make fun crafts with your kiddos! Here are my favorite art projects that you can make. There are tons of fun learning activities you can do with them, some of which we have already shared and others that are saved in the drafts folder. If you cannot get hold of these foam numbers from the craft shop, you could also make these number stamps by cutting up kitchen sponges into the number shapes to fit onto the bottle top. Exploring the number stamps in their own individual ways: Miss 5 counted backward, made new numbers by joining two of the number stamps together and counting onwards from 10. Miss 4 pressed the stamps in order from 1 to 10 and then randomly stamped the numbers around the page.