It was a big challenge to make this hat. The matter is that it was made from one yarn only. What I've done was that I split multy orange color string from the grey one separately and then knitted the hat. Why did I do that? The reason was that I could not find any yarn which could go with this one. This yarn was too thick, so no mater how many times I folded any other yarns the effect was pathetic.
So that's why I made such a complicated operation over my yarn in order to make the hat.
Anyways the result came out nice...so it worth it!