Invent a Recipe:
Cook a dish together new with no recipe.
Choose ingredients you like and use them differently than you normally do.
You can split into 2 teams and have a competition.
Creative Nature:
Take a walk in the neighborhood and look for cool items in nature such as leaves, stones, sticks, etc.
Then make a fun art project with the objects you found.
Repurpose Fun:
Choose a few items around the house.
Think of ways to use the item differently than the purpose it was designed for.
Example: a spoon can be used as a tiny mirror, microphone, a digging tool, etc.