Dorothy from Wizard of Oz might be easy to do
White blouse, blue dress/skirt, pigtails, basket, white socks and red shoes complete the costume. See
http://images.ozcostumes.com/child-dorothy-costume.jpg
Harry Potter - white shirt, tie, black cloak, and glasses.
http://blog.beliefnet.com/pontificat...y%20Potter.jpg
Tin Man from Wizard of Oz - lots and lots of tin foil!
http://www.ozcostumes.com/child-tin-man-costume.html
Tracey Beaker from the Jacqueline Wilson stories - Black curly wig, striped rugby shirt, red trousers
http://images.tvnz.co.nz/tvnz_images...y_beaker_d.jpg
Elmer the elephant - lots of different coloured patches sewn together!
http://www.beginningtoinquire.ecsd.net/Elmer.jpg
Little Red Riding Hood
http://www.menalto.com/gallery/d/413...iding+Hood.JPG
The Cat in the Hat by Dr Seuss
http://www.afn.org/~afn15301/pics/catnhat2.gif