Gosh we have been really enjoying this super easy activity amid our regular activities. For valentines day we had purchased a set of hearts in different sizes from Walmart. The kids used them for hunts and I spy etc. When I spotted a set of egg cookie cutters I thought 'hey why not we enjoyed it last time'. This time we have been using them to work on organizing things by sizes, identifying biggest and smallest etc... We have also used them for Play Doh as well as tracing. Another super easy thing that we have used in many ways.