This can be illustrated with dry ice, which quickly wicks the heat out of metal (i.e. pennies) that comes into contact with it. Add a dab of water, put your surfaces in contact, and they stick.
If you're short of dry ice, Chicago specializes in producing the requisite temperatures for a few months at a time. Instead of having to conduct away unwanted heat, you can just radiate and convect it into the air. Things of pretty decent mass can be stuck together with a bit of water and patience:
Nothing up my sleeve.
Hollow leightweight things allow for even greater topological exploration.
Thanks to midwestern winter for your dogged support. ⁂