DH and I always decorate cakes with the DDs for each others birthdays - always a splendid riot of jelly sweets and chocolate buttons. I have to go out from about lunchtime until mid-evening on his birthday this year. He will be picking the girls up from after school club/nursery and bringing them home at teatime. So here's my idea. I want to ice a cake in the morning and leave it in the kitchen with little bowls of sweets so that when they get home, the DDs (3 and 5) can stick the sweets on unaided and then present the finished cake to DH. Doesn't matter if it looks a mess, but they do need to stick. What can I use? I think butter cream will dry too much. I saw a recipe for Devil's Food Cake in the new Nigella Kitchen book and she says that icing stays sticky but know from bitter experience that her cake recipes don't always work and I don't want to have to do a dry run (on a diet and I don't want to be tempted twice). Any ideas? Thank you! Obv. could always just do it with them the day before, but thought this might be more fun.