After you cook the noodles, just fill the bag about 1/3 of the way full with water and add a few drops of food coloring. Add the noodles and zip up the bag. You have the make sure the water completely soaks all the noodles, so I just let Connor play with the bag:
I ended up doing this multiple times, and just draining the noodles and rinsing out the bag for each batch.
The longer they sit, the more the color soaks in. The light tinted green ones ended up becoming darker when everything was done. It definitely made spaghetti night much more entertaining! The best part is, even an 11 month old could have fun. You do not need to just rely on letting your toddler enjoy nature as the only sensory development! The best part about being a 21st century mother is the ease at which we can obtain ideas and information. Reading something on a website can instantly spark your imagination and create a chain reaction of inventive fun. Let me know how your tots liked it!