This is modern science at the service of human imagination! Putty peeps is a wonderful new kind of putty that can take on both a liquid and solid form. What do we mean? When one handles the putty, the heat from the hands transforms the putty into a solid substance which can then be stretched, squished and shaped. But the moment you leave it alone for a while, it seems to melt away like an ice cream. It's mouldable, bouncy and you can make it move!