We play a wonderful game with our two boys! We have a small (new) cat litter plan that we partially fill with luke-warm water and throw in a few blueberries (slices of grape work too). We put this on top of a large towel and Nando and Mateo just love to bob for blueberries! They snorkel under the water, frolic, burrow under the towel to dry off, play like crazy and of course, have a little snack. It's especially great after a little walk outside on a warm day to cool them off - and wash their feet at the same time. We love it as much as they do! Lots of laughs!