An inexpensive trick is to use a balloon with a string attached to the hanger. Always have extra outfits when ever you use a certain outfit as display. Some customers shop by display. If it is on the model, that s the dress they have to try on. You do not want to keep you customer waiting while you undress a mannequin.
Most maternity apparel have little hanger appeal.
Using back clips when ever possible, give that slim appeal. Suggest to your customers dresses that look better on than on the hanger. Once they are in the dressing room, ask your customer to try something on because you want to know how it looks. You may not carry accessories, but you should consider using scarfs and jewelry to enhance your display. There are certain categories that sell better when merchandised separately.