#1- Backdrop is graduated vinyl sheet available from Amazon.com.
#2 - Backdrop is attached to wooden dowel with duct tape.
#3- Foam board used for house insulation. This is the kind with a silver reflective side....buy at Home Depot or any building supply. it comes is 4' x 8' sheets. cut it into 2 - 24" x 24" pieces for the sides. The back piece needs to be 24" tall and as wide as your backdrop plus an inch. Duck tape it together.
Make a notch about an inch from the back upper corners so that you can rest the dowel there.
#4- collapsable disk made of translucent fabric to diffuse the light. (The is a photo equipment item) This rests on top of the set up. Also available from Amazon.
#5- And last, but very important, a light source that is color corrected. I use a high wattage CFL like this one also at Amazon.