Hello!
Last time I posted I gave some pointers on creating old film style techniques in camera with the new DSLRs. I explained ways to create pin hole imagery and color filtered imagery in camera. Â Here are a few examples of those techniques.
The  image on the left I took with the pin hole technique and the image on the right I took using a red filter like I explained. I used the red filter over the on camera flash. You can create different effects with the filters depending on how much of that translucent colored paper you use, as well as using it over the actually lens instead of the flash.
Now go out and experiment and create something amazing!
-Philip J.