Color Changing Tesseract From Loki

It's the Tesseract used in Loki and previous marvel movies before, such as Avengers: Endgame. Loki is seen using it to travel through time, and in Avengers: Endgame Loki tried using it against Thanos.

Sphero LED robotic ball with the cube it came inside, frosted spray paint, and cotton for a pillow.

I had to find the perfect cube to act as the tesseract. Then I had to worry about how I was going to fit the cotton in the cube along with the LED robot. Which I did by making a small area in the cotton for the robot so you could see the glow equally in the cube without seeing the robot.

The next step to building the tesseract was finding the correct spray paint I needed. The one I used was clear semi-transparent finish, and the brand is Rust-Oleum. Then I had to adjust the LED robot inside to fit the freshly spray painted tesseract.

Finally I had to pick the right color for the tesseract. I used an app called Sphero Education to code the robot to change it's color. After I did that, the last thing I had to do was pick the right shade for each color of the rainbow.