You can use paper plates, straws, balloons, rubber bands, paper cups, and tape, but the smaller your design, the more points you will get. Think about what materials you will pick and how you will use them. Will you use them as is, or alter them to get the results you want?
Egg shells are delicate. How will you distribute the force to protect your egg from getting poked, prodded or pierced upon impact? (Remember! You need to show the intact eggshell at the end of your egg drop video, so make sure any egg protection is removable.)
How will your design keep its shape? How will it securely hold your egg? Will it be built to be hard like a tank? Or soft like a pillow? Or a little bit of both?
Drag is a force due to air resistance which in the case of the egg drop, directly opposes the weight of your payload. Will you try to use air resistance as part of your design? If so, how? If not, why?
Is balance important to your egg invention? What about orientation? Is there a specific way it should land? Is there a specific orientation that the egg should be placed in your design?
How will your design absorb the force of impact? How fast will your egg come to a halt when it hits the ground? Will you use crumple zones or perhaps a different method to break the fall?
Future Engineers hosts online innovation challenges for K-12 students. In 2014, Future Engineers launched its inaugural 3D printing in space challenge, sponsored by the ASME Foundation with technical assistance from NASA, which produced historic achievements including the first student-designed 3D print in space. Based on that success, and through the support of the U.S. Department of Education's SBIR Program, Future Engineers launched a multi-challenge platform in 2018 capable of hosting STEAM challenges of all kinds. All challenges are free for student/classroom participation.