My son loves thomas the tank engine toys, but the take along thommas toy series cost a fortune (from 7.99 to ten pound for a small train), so my mrs bought some extra thomas's on clearence at a cheap shop, I'm gonna make a few random trains as my son loves this one, a charactor of my own creation. Boo the ghost train. Simple black repaint with white acrylic detailing also for the ghost, skull crossbones and boo! Motif.
Simple lesson here, if your kid likes an expensive toy line, buy many of the cheapest figures and make em unique.