I've seen several different wood fender variations from several companies (most who are in the Washington an Oregon areas) but IMHO none can beat those at www.Woodysfenders.com who makes such a durable and quality (not to mention absolutely beautiful) product.
They were at the top of my list when customizing my tour bike and since putting them on I have gotten tones of ooos and aaahhs. In fact my business partner (we own a bike shop) insists that I put my bike on the front deck of the shop as it tends to bring people in to check it out. What I am asked most about are about my Woodys and the the top question have to do with the fender's shape as they are not compound curved like plastic ones. There is a company that makes them that way but I believe they are milled and not lamented making for a little thicker and heavier fender which leads me to believe they would probably be more brittle as well.
Up until now Woodysfenders have only been flat but I just got an email announcement from Cody that he is now producing compound curved fenders. I went to have a look and they are incredible! A bit spendy but holy cow they are beautiful! I justify the cost though base on that Woodys is mostly a one guy operation and his craftsmanship and attention to detail are incredible and well worth the price IMHO. Also, for about the same price you can also get them customized with your choice of woods and pattern.
I SOOO want a pair!