Well, curiousity killed the cat! I wil try to be patient (NOT NOT NOT).
Anyway, I ordered 600 g of shetlandwool for the Mermaid. It was almost impossible to choose besween the colours. I have settled for petrol as the main colour (ny51) and then ny10, ny12 or ny07 for the gussets and stribes. Couldn't make up my mind :-)