This year, for my science fair project at school, I decided to measure how the color of a roof affected the temperature inside a house.
To make the model house, I designed the walls on a program called Inkscape, a vector-based drawing program. I moved the file over to a lasercutting software, and cut it on a lasercutter at my hackerspace.
Here's me on the lasercutter:
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To monitor the temperature inside the house, I used the Arduino hooked up to a thermistor that relayed data back to my computer.
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I got an A, and I was the only one in the class whose project involved a microprocessor and high-powered pulses of focused energy (the lasercutting)!