Here's how I threw together a booth to take photos of my models. 3 foam boards and 2 sheets of craft paper make up the walls and floor. Overhead light illuminates the model while the front light is used to soften shadows and provide additional illuminated where needed. Total cost was under $5.
The model is Skyline Paper Models' DC-9. Jeremiah currently has the DC-9 in the liveries of Iberia, TWA, Continental, and Eastern Airlines available at
paper models. I enjoyed building this model, and highly recommend it.