Sherman is hatched from a Super Moshling egg which appears in the middle of the set in the zoo when the player completes a Moshling set (with all four original Moshlings). The Bumbletron 9000 Deluxe hatches the egg with the help of a golden spoon.
Lonely knights and riding panto horses.
Rusty helmets and stray meteors.
Their dislike of stray meteors refers to the extinction of dinosaurs.