Boing magic box

When I was a kid I had a funny toy I've never seen again. It has been around my head for ages and now is the time to give it a chance and make it for my nephew. It had a sucker on its bottom and a spring attached to the sucker. When you stick the sucker on a table it holds the spring some time, but in the end after some seconds the sucker unsticks and the spring make the whole thing jump!! It was very funny but, what if you could make jump anything you want? I designed this box that holds inside a sucker and a methacrylate disc (to allow the sucker to stick well. You can use any smooth plastic surface 3mm height / 34mm radius you have around or give a try to your printer to print the disc and keeping the mirror-like face upwards, tough not recommended. Don't use crystal) that achieves the same effect but with an upper compartment where you can put the thing you want to be thrown away. Just press down the compartment to make the sucker stick and wait a bit for it to be thrown away... Yo