I made this amigurumi chameleon for a recent swap.
The pattern is by Hansi Singh and it's a challenging one! There were moments when I didn't think I would have the patience to finish it.
I used a skein of Briggs and Little wool for the body and some Lion Brand Wool-Ease scraps for the feet and spiney back bits. There are pipe cleaners in his legs and feet to help him grab onto things.