Chalk Fireworks

I'm getting a little nervous about the 4th of July.  My two year old has a newly-developed fear of any loud noise -- a truck driving by, the vacuum cleaner, sirens, etc.  I can only imagine what the sound of firecrackers is going to do to her.  We are looking for some earplugs!

This project is an easy way to make a "silent" fireworks display.

You need:
Black paper
Chalk

1)  On the black sheet of paper, make a small dot with a piece of chalk (I found a few pieces of thin chalk, but we also used sidewalk chalk).  Make short lines in a circular shape around the dot.  Continue adding lines around the dot until the firework is the desired size.

2)  Place a dot somewhere else on the paper.  Repeat step one.  A good idea that we did not do (as you can see by the photo) is to have a piece of paper under the non-drawing hand to prevent smudging!

I have read (but not tried it myself) that you can spray the chalk drawings with cheap aerosol hairspray to set it.  Has anyone ever tried it?!!