i used to have a pair of anoles living on my window sill for close to 8 months but i think the cat got ahold of one and my mom accedentally closed the window on the male's tail and he dissapeared shortly afterward. i put a bunch of live plants on the desk under the window that they would occasionlly hand out in. it was pretty cool but looking back, it probably wasn't the best idea long term. i've seen the cham in a ficus done before but i don't know how well it works, seems like humdity could be a problem.