I used a collapsible soft box (a Lumiquest Softbox III) on a Canon 580EXII speedlight. I placed the soft-box so that it was facing upwards and then placed a white piece of paper over the top of it. I then arranged gummy bear vitamins around until I liked the arrangement.
Then it’s just a matter of shooting until you get something you like. I played around with adjusting the power of the flash as well as the aperture. It’s the same technique I used with the Fall Leaves shot.