And inside is.....

My son decided that it would be a good idea to play with playdough.

We start with an egg and then it has to 'grow' into something

But SJH just wanted me to make the eggs then me to make the thing that emerged from the egg.

I gave up - there are only so many snakes you can make and it kind of defeated the object of him being creative.

I will try this game again though...