Forgive my brain slip, but *someone* told me that when I was in Spain I *had* to try the Rabitos...I never saw them and I believe PM at the time had not heard of them either. I was just perusing a Spanish foods site here in the US and came across this...
http://www.tienda.com/food/products/ct-02.html
I think I may need to try these for the chocolate blog I write for...research purposes only, of course! :-)