I've made four in total. The green one was my first attempt, followed by the multi-coloured purple one, then finally the two smaller, mirror image chameleons (although not actually mirror image because I gave one of them the wrong coloured head spike, oops).
The pattern I used is by Ami Amour and is available on the Amigurumi Patterns.net website. I was admiring this pattern for a long time before I decided to buy it. The pattern is obviously super cute, but I was also intrigued by the construction of the pac-man like mouth. The pattern comes with easy to follow instructions, with plenty of photos to show you how to create the open mouth. It was a lot simpler than I was expecting, but it is difficult to create a ninety degree angle. The mouths of my lizards don't bend a great deal; it's the top lip that forms the angle instead.
While the pattern is easy enough to make, I did find it took a while to sew all the pieces together in a way that I was happy with. In particular the legs need to be sewn on strongly to give the chameleon enough support to stand. As you can probably tell from the pictures, this didn't always work out for me - these poor lizards are not very good at staying on their feet!
I had a lot of fun making these and they make a nice addition to my amigurumi collection. The pink and mint green ones live on my computer screen now (although they are regularly being knocked off by my cat when she decides to stand in front of my screen - which is often at the moment. Grrr.)
For the first time in a long time I'm not sure what to crochet next... I need some crochet inspiration! Let me know if you've seen any cute patterns lately because I'd love to give something new a try :-)