I used to make 3" quilt blocks squares for a gift shop. She was in an Amish area and sold these Amish dolls. She would put the small quilts on their lap to make it look like the doll made the quilt.
Minis can be used for mug rugs or coasters or hang in a window to catch the light. Any air motion will make them swing which is interesting. They can be used to put under a candle or as a placemat or trivet under a hot dish.
They can be framed and displayed or just display on the wall or on a shelf. They can be hung from a small clothesline hung like a swag.