Noodles provide a wet, sticky medium for messy play. You can hide toys, beads, or other small objects for increased exploration. Changing the color of noodles is also a good way to expose children to a new version of the same food. There are a lot of recipes and tutorials for making both wet and dry colored noodles. Visit this site for instructions on how to make wet colored noodles for eating or messy play. Try this tutorial for instructions on how to make dry colored noodles that are good for beading or to have in a sensory bin.