One of my first IEM's was the Woodees Vintage model. I always loved them but for some reason I thought there must be better so my adventure began in IEMs. I actually picked the best ones according to this as I have both the "Vintage" and "Blues" models. These are not expensive and a great way to check out what a wood shell does to an IEM.
http://www.headphone.com/rightbetweenyourears/?p=2458