If I was going to give one tip on producing this play it would be this: physical extension. None of these characters are human, so have fun with their physicalities!
Have students extend their limbs away from their bodies. Explore a variety of levels. Would the Woodland Fairies exist in a high space or a low space? How about the Flower Fairies? What part of the body should each group of fairies lead with? Who are the high status fairies and who are the low status fairies?
Get students to take their characters as far away from human as possible!