Sammy has a lot of sandy perches in his cages. These are the perches with sand stuck to them and they work really well for keeping his claws clipped. But it also is very hard to him to hold onto a smooth surface. I usually wear a chunky sweater when he's on my shoulder, that way he can hold on to the open weave. I devised the above to fit my work chair. Val and I safety pinned the back to form a pocket and this catches all the toys that Sammy drops. And let me tell you what a genius I am. He drops a toy about every five minutes...less time if he throws them down when he's pissy. Then you can see that I used those clothes hanger satin things to secure the sweater to the front so that it doesn't fall off the back. That did happen one time. I'm thinking I should patent this thing..I haven't seen anything like it. What do you think?