Found in an Easter Cracker

One of our British Christmas traditions is the Christmas Cracker - (if you don't know what it is, follow this link). The retail industry has recently tried to increase its profits by introducing Easter Crackers, which are the same but in Easter colours. My partner in her wisdom decided to buy some, and we got the usual silly hats etc. One of  the "gifts" in the crackers was a small netting bag of half a dozen coloured glass marbles - with a label attached with the following. "WARNING ! Not suitable for children under 3 years due to small balls". What about the girls then ?