I made my own, but I wouldn't give up the day job!
I used chicken wire for the frame, stuffed with newspapers and covered it with papier mache, poster paint and sealed it all with craft glue.
Mine is a bit bumpy, but you may be more gifted then me at DIY: here's my result:
http://sophiesknitstuff.blogspot.ie/2014/04/diy-dummy-put-to-some-good-use-alpaca.htmlHave you looked on Amazon? I wanted to buy one there but the postage cost to Ireland put me off.