I have just had the best idea! :) If I make a cake usually I have to cater for; a vegan, non vegans who don't like icing or butter cream & those that love it all . So I make a vegan cake & ice half of it to save people scraping buttercream off 
& that way everyone is happy. Until they start moaning that a traditional cake tastes nicer than a vegan cake.
But I've just found the best mould ever! I'll see if I can link it in a bit, its a farm cake mould with a farmhouse, barn, tractor & kennel all in separate bits of the mould. So I'm going to do a vegan cake mix for the barn then split the farmhouse in 2, on the bottom half it will be plain sponge with a bit of jam to sandwich it to the top half which will have a buttercream roof! Everyone has the cake they like from one mould!
I also think I can use it for Christmases if I hang it all with edible coloured lights, its not a use once mould.
www.lakeland.co.uk/18636/Silicone-Farmhouse-Mould
I'm really excited about it! 