The pattern I used was "Tutti-Frutti" by Janet Rehfeldt, from the book "Crocheted Socks". The book came out in 2003, so I have had it for a while. But you can probably find it at a craft store. I used the large size, because I have large feet and I acheived gauge without much problem. This is unusual for me as I tend to crochet loosely and normally have to adjust the hook size downwards to scheive gauge.
I also wanted to include this poem. It's not mine (I could only wish!) but it's great because it takes an everyday article such as socks and praises them. Now my socks aren't anything like the socks described in the poem, but it's still cool to see how someone appreciates a handmade gift.
it's called "Ode to My Socks" by Pablo Neruda