What are oven dresses? Thanks.

Glasses cases,quick totes, make -up purses, soap hangers, toilet paper roll hangers, soap hangers, pommanders, covered coat - hangers, pin cushions, peg baskets or hangers, plastic bag caddies, laundry bags, drink coasters, fabric pins, fabric pendants or neck embellishments, macrame flower pot hangers,emboidered motifs.

First of all, I have to say I L O V E your avatar. I have two Airedales!
How about making "cat mats". You just use small squares and make the whole thing 2 feet square. You can do the envelope whereby you sew it without a binding and turn it rightside out when you are done. Put a very light layer of batting and sprinkle a little catnip on the batting. This will go together quickly and bring you a fair price. The are popular here in the NE of the US.

Eyeglass cases, tissue holders, coasters, baked potato bags, cosmetic bags.
Jo Ann

If it is a large craft fair, with many crafters, if they are able to shop too, I would make knitting needle holders. I made one with birds on it for my mom this year and I think it was her favorite gift. She does a lot of knitting in the car when she and dad are going back and forth to the weekend cabin.

Thread catchers are always a good seller at our boutiques, we put bird grit in the upper pin cushion to sharpen pins

Here are a couple pics

I made some of these wine glass coasters/cozys for the boutique at our guild's quilt show. I sold about 1/2 of them, and had the remainders for Christmas gifts. They're pretty easy -- based on Stack-N-Whack. In fact, the instructions are on Bethany's web site: http://www.bethanyreynolds.com/coasters.html

I have been collecting things off the internet for the last year. I print PDF files and save them in a file called boutique. I bet I have over a 100 things. book covers, aprons, I-Pad sleves, place mats the list goes on and on. Just serf the net and you will be all kind of things