nestoc, do you know if they would sell the pieces separately from the board? That's an amazing looking pairing with the milled leather board, and I know that some sites offer replacement pieces on certain sets, which makes me wonder about the pieces without the board. Also, how is the magnetism of the pieces you are using as compared to the pieces which came with the milled leather board?
celticduck, I love that Serbian pocket set. Did you find this on eBay? It looks to be roughly the size of a Moleskine pocket notebook, which would be super-convenient.
The set below was a gift. It's a mid-sized magnetic set, and I particularly like the shape and proportion of the pieces.