4/24 Real-Time Deformation

I thought this paper was pretty cool, but I was unsure what type of materials they were trying to create. I thought most of the examples looked fairly realistic, but I was thinking about what objects in real life behave the way those did and I couldn't come up with any. I thought some of them looked a bit like Jello, but if you dropped Jello like those objects were dropped, the Jello would probably break. I also thought about those sticky hand toys:

They seemed a bit like that, but they weren't sticky. I kept thinking and I couldn't come up with any real world examples of objects that behave the way the simulated ones did. Even so, I still found the simulated ones to be convincing. How does that work? I suppose as long as they're physically plausible, they should be believable, but at the same time I think we find things believable if they are similar to things we've seen before. Something to think about.