There's a lot of discussion about this issue. I don't see how someone who writes a "pattern" for an old block (log cabin, 9 patch, etc) can claim that you are infringing on their copyright if you sell a log cabin quilt. It wasn't "theirs" in the first place. This is one reason I never buy patterns, I do not like someone charging $8+ for a "pattern" that is obviously not their idea. Sure, if it's original applique shapes or something like that, but not for the old blocks. I've seen very high price tags on patterns for simple squares sewn together!
Disney...they have the money and will hunt you down if you get noticed, ask some (former) Etsy sellers. I never buy licensed fabrics either.