Homemade birdfeeders will help your student engage their creativity in this engineering and design challenge! Materials can be whatever you have on hand at this time. How can you design your avian eatery to keep away the rain...and the squirrels?! What colors and materials attract the birds in your community? Don't have a milk carton on hand? What other structures could you use as the base to your birdfeeder? The sky's the limit!