Two lights taped to each other, a swinging rope, and slow shutterspeed:
superpowers
My sister posed like in the picture, while I took a picture of her with blitz, and then i used slow shutterspeed while holding a light up and down in front of her hands.
North-light
This picture was taken on my bed. I found a light and layed it on my bed,
then I took a crystal in front of the light like in the picture below,
and her you go!
Lightwave
This Picture was taken with long shuttertime while I waved with a light in front of the camera.
Guitar shadow
In this picture I slowed down the shutterspeed on my camera ( Finepix HS20 EXR) and turned of the light in my room.
Then I took a light and just waved it around behind my electric guitar, and “Voila”.