Thanks...had a look on TM and they are all possibly a bit small. The Fairy Shop is uber-expensive, so might go and check out the Warehouse tomorrow.
We have decided (okay I decided...) to go as Oberon and Titania (King & Queen of the Fairies from Midsummer Nights Dream)...I have the costumes all planned out in my head, now just have to get creative and make them! Stay tuned....its not til Sept but the way I sew / make things I need all the time I can get!