Bill Stevens makes a range of cute little planes for indoor nights - my pick is the diddle rod - cheap(ish).

http://www.stevensaero.com/shop/prod...cat=256&page=1

Make sure you buy a light battery for her and if you can get some 3-4 g servos - every gram counts... you might even like to try using laminating material to cover the wing to save a couple more grams.