draw pictures, make designs, anything with this great trick using lasers and advanced (kind of) camera techniques! 

heres how to do it:

1. set the shutter time to 20-60 seconds.
2. set the shutter size to a larger number than before.
3. turn off all the lights.
4. set the timer to 2 seconds.
5. point the camera at a flat surface, E.G. wall, curtains, giant flatscreen TV, door
6. press “capture”
7. quickly get your laser, and when the timer reaches 0, draw whatever you want on the flat surface.
8. take a look at your art!

you should see something like this (NOTE: the picture will be different, but it will look similar):

Image by JTHammond via Flickr