My kids are having their birthday party on the 10th of September. I think I am alright with the cakes - will do a white and a brown mud cake so I can do them mid week because they like to sit for a few days.

My problem is that I am due to have baby on the 9th, so I need an icing that is easy! Does anyone have any recipes for a good, easy icing that I can slap onto two cakes? I was thinking of just going white and then piping a different colored edging around each one. I have pre-printed icing pictures to go on top. I would prefer a harder icing because depending on baby I may need to glad wrap it and don't want the icing to stick to the wrap. Also if I do have to make them in advance, do I store them in the cupboard or fridge?

TIA