Peripheral manufacturer Mad Catz has put two wooden Fender Stratocaster Rock Band controllers up for auction on eBay — both signed by legendary Who frontman Roger Daltrey.

The auctions are to benefit Teenage Cancer Trust, a nonprofit that “funds and develops specialist teenage cancer units within hospitals which enable young people to be treated together, by an expert team, in the best possible environment for their age group.” Daltrey is one of the organization’s official Patrons. Mad Catz is also pledging to contribute 15 percent of its sales of the controllers to the organization from now through the end of the auctions.

Both auctions start at $300, and as of this writing have no bids. I strongly suspect that will change before they end on February 10.

You can bid on the guitars and find more details here and here.