Rhyme & Reason designer Mary Huang makes illuminated dresses and scarfs. The scarfs are made from machine-knit material while the dresses are a combination of woven cotton jersey and hand-crocheted flowers.
About two dozen bright white LEDs are embedded in each for the light effect and when not in use, the garments can serve as lamps. Both pieces are interchangeable from battery power to wall power via an adapter.
If this subject interests you, there are more cool trends below about LED garments.