Fiberglassing is a fun, fully customizable project, but is really messy.  I just finished making fiberglass molds for the trunk of my car.  It was very fun but yet on the other hand was very smelly and messy.  It took me a while to get use to fiberglassing but once I got a handle on it it was a blast.  You can pretty much make whatever you want to a certain point.  You should it out sometime because you will be surprised what you will come up with.