Thanks a lot, Margaret. It'd be great to find out more about it.
Maureen, I had at first thought maybe it was a candy topper too. I compared sizes of my candy toppers and smurfs and came to the conclusion its a bit small. I also looked right through all of baboune's candy toppers and couldn't see it there.
Dyar, I asked the seller if it had any markings and if it was indeed made of plastic or if it was made from ceramic or something similar but the auction ended and the seller didn't bother replying.
Anyway just thought someone here might know. I don't even particularly like the smurf or anything but once you get interested in finding out about something you just want to get as much info as possible.
Thanks everyone for their help.