So here is the idea. I want to wrap a key up (make it smooth) and insert it rectally. Then for the escape I would have to expel the key and dig for it. But I want to have something to expel besides excrement to dig though. The idea would be to insert the loaded egg then some sort of substrate that would be painful to expel too soon. Like hard ramen noodles, Minute made rice, or something that would adsorb water and soften. Any thoughts? Or ideas on how to create a temporary internal blockage at the rectum?
UPDATE
Dry substrates are not a good idea. It needs to be something gel or liquid that turns sold then dissolves.