I've tried this project before on other forums (Double Rifles, Mannlicher Discussion & Archive). It's not as easy as one might think.

Finished size of the avatar is 48x48 pixels. That's really small, and a photo with much detail gets lost at that size.

Here are some looks:

The last image is one I found hastily on my computer - from my A. Henry .577BPE original mould. I cropped it from this image:

There are some good choices here. I'll see if I can come up with anything else and hope others will put forth suggestions.

Curl