This can be a very sticky subject. Some craft fairs will not accept anything that is a trademarked item unless you have permission from the owner.(Disney, sesame st., Dora). Others don't even question anything. The church and school shows might be safer for selling these.
IF...the Disney police see you at a show...they can confiscate every thing in your booth and also fine you.
I do too many shows a year to take a chance. I personally do not sell anything Trademarked at craft shows...I figure that the money I may make on the item isn't worth the trouble.
I know this subject has been talked about before...maybe you can find the thread. Good luck