this blog I ran across in my internet wanderings, although the temperature issues that my oven has affected the result somewhat. Rather than neat layers we got a marbled effect, but that's not so bad really. I don't want to do it again in a hurry though - I think all the food colouring gave me a headache. There are a bunch of pics at Flickr, if you click on the cake pic. But I'm tired now, and can't remember what else to say. Oh yeah, we had fireworks. Erik like the fountainy type ones, rather than the big bangy ones.