If you do not have any luck trading your marathon bib for a 10K bib, I would be interested in purchasing your marathon bib from you. Please email me at firstname.lastname@example.org if you would consider this.
Are you still looking for a 10K bib. I'm selling mine. I bought the bib for $108 a year ago and found out that I was pregnant a few weeks before and then paid to defer it for 2012 of $30 but can't do it this year as we have to go take the ship out to sea (Navy) since the hurricane is coming in so I just got orders to go back out by tomorrow morning. I'll sell the bib for $75 if you'd like it! Let me know. My email is Lckuconn@yahoo.com.