Materials

As defined by my friend, the material would have to be soft and flowy. It would also have to be tough enough to hold up LEDs to be sewed into the fabric. I would likely start with simple dark cotton, though potentially switch at a later time to a different fabric with more flow.

For the ‘stars’, I would use LEDs. I would also want to use conductive thread to create one (or more) soft circuits to light up the LEDs. A Raspberry Pi would be sewn into the back of the dress, and would drive the logic to switch the LEDs on and off when the constellations are in the sky. A battery would also be required.