Some times a little softbox will do the job. The Phottix Flash Softboxes uses a Velcro strap to attach the folding softbox to a hot shoe flash. The 22 x 16 cm softbox (10") has movable inner diffusers for more control and top vent for bouncing light.

The light from this small softbox is neither hard nor soft, and is perfect for fast portrait shoots when used on a light stand or hand-held by an assistant.