Revolution supporters group The Rebellion have created a limited edition Boston Marathon scarf that you can pre-order here - with all proceeds going directly to the recovery of Revolution goalkeeper Matt Reis' father-in-law, John Odom, who was seriously injured in the bombings on April 15.

From nerebellion.org:

The Revolution community has been touched personally by the events. As you all know by now, Matt Reis’ father-in-law John Odom was seriously injured during the bombing and is still in serious condition. You can follow his progress as he recovers here at the John Odom Support Page – Boston Marathon Bombing Victim.
John’s family has also created a recovery fund for him where you can see up to date information and donate at John Odom Recovery Fund
As we reach the one month anniversary of this tragic event, the Rebellion has create a special scarf as a remembrance to all those affected by the Boston Marathon bombings. 100% of the proceeds of the scarf will be donated to the John Odom Recovery Fund.  We will only be selling a limited number of scarves; first come first serve.
Pre-order and get more details here.