In a mildly remote wooded area it seem that gathering tinder, kindling, and small firewood would be fairly easy one-handed. I'm not talking about cutting and splitting big logs - only small easily breakable sticks. Getting tinder might be a challenge, depending on what was available, but using a combination of feet/arms/chin/mouth I would think I could do pretty well.

I'll have to try it the next time I'm far away from my sub/urban area.