Illicit fireworks, San Francisco, the Mission, July 4 2008

The first of these images—#2895—is hearby released under the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.

These are fairly high resolution, just in case the mood takes you to use one as part of a screen saver or wallpaper.  Hence, they’ll be a bit slow to load.