Probably getting in over my head

I just signed up for 2 blocks for 2 different quilts at lovequilts.com-I found it on the 25 things for charity blog that I belong to. These quilts have cross-stitched blocks and they are made for kids with diseases. I figured that since it's for charity-anything that I end up buying shouldn't count against my 25 projects-the only things that I would have to buy is the fabric and threads (if I don't already have them).