Halloween Bleg

The Eight Year Old has announced that she wants to be the Headless Horseman for Halloween this year and I'm racking my brains for a way to rig up a costume that would put artificial shoulders above her head.

My basic thought is to build what amounts to a very over-sized set of shoulder pads for her, perhaps using a wire frame, perhaps using styrofoam, the whole to be covered by a long, black cape, of course. The main thing is to keep the whole contraption secure and also to give her a way to peak out so she can see where she's going. The pumpkin-head will, of course, be easy. As for the horse, I think we're going to go with stylized rayther than literal representation.

Any suggestions would be appreciated.

UPDATE: In response to a flood of email inquiries, the Six Year Old is going as Super Girl and the Four Year Old as Princess Jasmine. Fortunately, no assembly necessary with their costumes.