Any ideas? It's a mold isn't it?

It looks like a mold to me.

This one is very similar if not exact

http://www.decoratethecake.com/store/WsDefault.asp?One=63

Ibmoser is right - that's the one. You could do one similar out of fondant. Make a pattern out of paper or cardstock and cut out. Pipe royal designs and let dry.

There is a similar one at Michael's or Hobby Lobby in the soap making asile