~ Round Pattern ~
This pattern is given for a small doily, but it can be crocheted to as big as needed simply by following the gradual increases in the pattern. Personally, I think this would make for a nice overlay on a hotpad, but you could easily crochet an entire afghan.
The pattern does not specify, so I imagine this can be crocheted with any yarn and hook size.
If you enjoyed this free crochet pattern, you might also enjoy more designs made available on Free Vintage Crochet.