I'm currently selling a pair of five-ten guide tennies on ebay.com.
They're sitting at $21 right now, and there are two days left.
They're in new condition (without box); I got them as a Christmas gift last year, tried them on my apartment and they fit too loose for me. They're men's size 11.5.
Here's the link if you're interested:http://search.ebay.com/five-ten-guide-tennies_W0QQsojsZ1QQfromZR40
(Just so you know amazon.com is selling guide tennies new for 70.)