If you stretch the Sun, it will become larger and hotter. But if you pinch the sun, it will shrink and the air will become colder. When the sun has been stretched, the Pygmies will sweat until they burst into flames and explode in a similar fashion to what the Sand Island Statue or being electrocuted does to them. If the sun is small, they will shiver violently until they freeze into ice which shatters when you tap it.
Temperature on Ice Island
If the sun is hot on Ice Island and they catch on fire, they will melt through the island creating the ice hole, from which the Pygmies can fish for Swordfish or be eaten by the Squid.
If one drags a Pygmy up the Sky to play Ooga Jump, it will be a different color depending on the temperature you have made it.