How do you make an alien egg with goo that looks like babies?

The alien egg with goo that contains what looks like an alien baby can be dissected,and the baby removed from the egg with tools provided in the toy pack. Since the eggs are toys, they do not actually produce babies, but are manufactured with these tiny aliens inside.

The alien egg shell is plastic. It snaps open to reveal the slimy gel-like bouncy putty, which can be manipulated, and the miniature alien. The alien itself is squishy and stretchy. The eggs come in a variety of colors and contain a variety of colored goo. Some alien eggs have twin aliens.