Our idea was to create a modular system comprised of "teeth" like points that create tension on the material when force is applied in a vertical direction. The tension points will cause the material to glow, and this will be visible on the sides of the tire. The plates on the side have a stopper in order to not cause too much tension on the material, which would make it break. The bottom of the module (place where it contacts the floor) has an arc shape for a more even contact as the tire rolls. A series of these rectangular modules will be spaced out and placed in a circle, sandwiched between rubber.

This idea was designed such that we can use the natural deformation of the rubber to compress a sponge shaped ML material. When the ground makes contact with these specific concentration points, the "bump" in the design would push up and compress the sponge fitted in the hole.

The idea for this approach is that as the tire spins, the rotational inertia of the tire will transfer to the charm, which is offset from the center of rotation. This will cause the mass in the middle to move within the circle. We can use this to cause compression and tension in the material holding the mass to make it glow.