Catrice Return of the Space cowboys is one of their Limited Edition polishes released as part of the Million Styles collection in March 2012. Ireland pretty much missed out on this collection but I was lucky enough to get some of the best polishes from a friend in Germany (FYI I love Germany and I'm dying to learn German!)
I layered 1 coat of Catrice Return of the Space Cowboys over 2 coats of Stargazer 129 (black) Looking at the pictures I should have done 2 coats of Return of the Space Cowboys but the effect was far more prominent in person. It shifts from teal to blue with a whole range of other colours in-between. It's an amazing topper.