This is a great way to use up those odds and ends of colors where you don’t quite have enough to make something, You can be as random or organized as you want in adding colors, it’ll look cool either way. You can knit until you absolutely run out and just start your new color there, or do it at the beginning of round marker. It won’t matter much. It’ll probably take you longer to weave in your ends than it does to knit the hat but that’s okay, it’s good practice! There’s a little mini tutorial at the end on how I join colors if you need it.

Further info: I am finding that after I finish the ribbing, I like to do a round of plain knit with the ribbing color before doing the slip, knit joining round for the new colors. Seems to make a little bit smoother and nicer join between the ribbing and hat.