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Ami, the squares need to be 12" finished, so I would imagine any needle/hook that works with your yarn and pattern to get that size. Worsted weight yarn usually crochets nicely with an F hook, I think, doesn't it?

Me, I just pick up hooks and try them till I like the way it looks. *sheepish smile*

Originally Posted by Arwen

I can not afford wool plus I'm allergic to it. I break out if it is against my skin.

Then no wool for sure! And yes, I wondered about costs.

Um, Autumn colors... http://www.color-chart.org/blog/tag/...color-palette/ This is someone's blog entry with three separate Autumn color charts, maybe it will give us a starting point?

Also the Autumn blues are turquoise, teal, and dark periwinkle, in case anyone was mystified.