It doesn't matter how good you are or what materials you use, but please help---beddding is needed desperately--some left with nothing but the clothing on their backs. I have posted on my journal all the info you need; this is info from the director of the International Quilt Festival. The only requirement is a desire to help!
I would stitch it with the selvedges on to match the repeat as much as possible, then grade back the seam allowance as selvedges are often woven tighter than the body of the fabric and can create a puckered look otherwise.
I've seen this done with shoulder pads. You need to collect a LOT of them--ask friends and family to save, hit the thrift store, rip out the ones from stuff you have. I have a friend who made one this way and it was awesome!