In addition to military models, I also enjoy constructing train models (including military train models like the Peacekeeper Rail Garrison train).

http://www.techbastard.com/missile/peacekeeper/railcar.php

To add some “grit” to my train layout, I’ve been building a 1% MC (aka. “outlaw biker club”) to add to the mean streets of the city the railroad services.

I’ve decided to name the MC the “New Sons of Liberty” and was hoping to use the flag of New Hampshire as their logo and back patch.

http://newt.org/Portals/0/UltraPhotoGallery/706/GadsdenFlag.png

While I would think decals of these flags would be readily available for Revolutionary War era modelers, I can’t seem to find a single decal of this flag or similar revolutionary war era flag.

I was wondering if any of you knew where I could find such a decal.

The figures backs measure .200 thousandths in with by .350 thousandths in height (in short, the figure's 1:64th scale) and the flags would need to fit in there.

Thank you in advance for any suggestions.

This is the New Hampshire State flag:

Is this what you mean? You'd probably want something like 4X3 mm. The inner circle would be about 1.5 mm in diameter.
Did you have another flag in mind?
You'll probably want to find it on-line, down load it insert it as clilp art in Word and reduce it to the size you want. You can print it on white paper and attach it with thinned white glue.

Try this: http://www.warflag.com/flags/awi/awiam2c.shtml