Silly Putty vs. Pin Sculpture
As some people might already know, Silly Putty is actually a high-viscosity fluid. Therefore, it flows and self-levels just like any other fluid, but in slow motion. It's also subject to the laws of buoyancy, and when a more dense object is placed on the surface of the putty, the object will sink. That was certainly the case with the smooth metal pins in this Pin Art sculpture.