A leg strap is easy to forget, and isn't my preference. My current bike has a chainring guard, as depicted in this image from Wikipedia:
http://upload.wikimedia.org/wikipedi...4725115%29.jpg
I find it does pretty well at keeping gunk off my leg and shoelaces and pant legs out of the drivetrain. A full chainguard is more than I'm looking for.

What I'm looking for isn't necessarily a bashguard, since a bashguard is designed to protect the chainring from damage. I'm looking to protect other things from being damaged by the chainring.

The cheapest Linus bikes have them:
http://www.linusbike.com/products/the-roadster-classic
So there's obviously someone in Taiwan or China cranking them out in quantity at a pretty low price, since the bike likely wholesales at $230 which doesn't leave any room in the BoM for a $20 part. Is there no retail source?

I have found a manufacturer called Driveline in Taiwan which apparently ships to the US, but they mostly have ones with a peened finish in stock, which isn't my favorite:
http://www.driveline.com.tw/_en/prod...tail.php?id=81
And ordering directly from Taiwan seems excessive for a small part.