This gets discussed in my other crafting circles as well... Knitting and diaper sewing. In both of those the agreed on consensus is that legally, you are allowed to do whatever you want with your finished product. You can sell it or display it under your own brand name. You couldn't sell it as "McCall's such and such quilt" but you can sell it as "Susie Q's Quilty Quilts" without any legal repercussions. Even if a pattern says you can't, there have been no cases of successful legal action. You can't deconstruct someone else's finished product and create a pattern and sell the pattern. I will add that there are acceptable community practices though, and I havent been in quilting long enough to know what they are like I do in diaper making. And I'm not a lawyer, just sharing how these discussions have happened in other crafts. And I realize this isn't helpful to the posters specific issue is her quilt show requiring specific documentation (which kind of goes back to those community standard I mentioned before.)