If you have many large items to be hung, consider a self-standing folding screen with panels of chicken wire or lattice board. Items placed above seven feet or below three feet won't be seen as well. Also, consider the lighting and effect you would like. If you are selling lamps, you may want a dark corner whereas a lot of light may be necessary for other craft items. Utilize selling aids.
Wearable items call for a mirror.
Magnets should be displayed on a piece of metal. Display bookmarks on an open book. Christmas ornaments can be hung on a small tree or you can make a tree out of peg board and paint it green. Demonstrate your work when possible. When people know about the work involved they become more interested, are willing to pay more and are less likely to complain about the price.