Light it up.
Once you have finished designing and 3D printing the primary structures of your Crew Dragon, you are ready to get creative. Create a simple circuit to add lights for the thrusters. You will need a battery pack with 2 AA batteries, a switch and LEDs. You can wire multiple LEDs together.
Interior Design
Add more features to your Crew Dragon by adding seats, screens, gadgets and astronauts. What can you design? Use OnShape, Tinkercad, and/or Thingiverse.