Frankly, I think I'd go to Lowe's or Home Depot, get some wood (strips), some screws, a small saw, and some stain in a light color and try the do-it-yourself route. Much less expensive than specialty shops. Good luck!

Does anyone know where I can find a dark wood wall mounted towel rack?

I really want something pretty much the same as this but in dark wood:http://www.pinterest.com/pin/386887424209768293/

I've even considered getting something like that and somehow trying to make it darker but that seems to be sold out as well!

I've spent hours looking online and in shops and just can't seem to find anything remotely similar to it, they're all just chrome at the minute. If anyone can help it would be much appreciated.