Rick Lockhart, founder of Flatline Guitars, is raffling off one of his Delta 90 T-style guitars that has been signed by Grace Potter and the Nocturnals. Proceeds from the raffle will benefit the Swedish Medical Center Patient Assistance Program in Seattle, near wear Flatline is headquartered. The raffle is in honor of Rick’s mom, who was treated by Swedish Medical Center before losing her battle with cancer in 2007. The cost of a raffle ticket is $10, and only 500 tickets will be available, so you’ll have a good chance of winning. You can purchase a raffle ticket from the Flatline Guitars website. This looks like a chance to win a cool guitar and support a good cause while you’re at it.