For those of you who don't know about Sculpey, it's a bakeable polymer clay. It's like a very high quality plastercine we used to play with as kids. It comes in many bright colours that you can further mix to get other colours and you can make lots of different things with it.
(See the website, it's got lots and lots of instructions for many different kinds of projects. We've also found lots of great polymer clay books in the library and it's amazing what some of these polymer clay artists can do with this versatile medium!)
But the absolute best part about using Sculpey for a cake topper is, is when it's baked, it becomes hard and durable and the customer can keep their personalized toppers for a long, long time.