The monocular from County Comm is pretty good for a light, small unit. It's not high end, certainly the price is very reasonable at about $12! Still, I find the quality to be pretty good, I have some high end binoculars for the boat that I wouldn't carry around in my daypack hiking, but, this is small enough to always having in that kit.
http://www.countycomm.com/optics.htm