I made this pretty little crochet hook case last summer. I used the pattern from a fantastic book called Kyuuto! Japanese Crafts: Lacy Crochet. I modified it a little and made it bigger than the one in the book, since Japanese crochet hooks tend to be a little bit shorter than the ones I use.
I also made these cute little pincushions, with inspiration from the same book. I use the green one myself, but the other three are up for grabs if anyone is interested. Post a comment if you want one!