Coosa, you can make a fast and easy one by getting some thin white fabric from the fabric store and picking up a couple cheap $6 desk lamps from Walmart and putting in daylight flourescent bulbs in them. I have an actual cube I purchased from Harbor Freight for $17, but I am not sure they carry them any more. Before the cube, I used 1/2" pvc pipe made into a box and draped the fabric over it.