If you remember the name of the quilt show, they might have a website where you can look at quilts from past shows. You might be able to find your quilt that way. Many quilt guilds have archived photos you can look through on their websites. If it was a National show, you may be able to find a book with photos of the quilts in the show. I know those are sold each year at the Paducah spring show. Good luck!