Have you ever thought of asking the children to decorate biscuits with  liquid strawbery and chocolate, hundreds and thousands, smarties and jelly tots etc?  It can be a good thing for children to do as they arrive at a party. 

The finished biscuits can be given to the children at tea time when they have had time to set.  A theme can also be built in such as princesses and pirates.   Give a prize for the best decorated biscuit.