I bought 3 pieces of white foam core poster board for $2.68 each, and 1 sheet of white poster paper for $.58, I already had the packing tape!
Then, I taped the 3 foam core boards together, creating a 3-sided "box" (place tape on outside corners)
I placed my "box" on top of the poster paper, (paper was a bit too small, but I made it work, for now!)
I used a desk lamp as my light source for the first pic, and natural light for the second...note to self, "Do NOT use yellow bulbs!!!"
Final results are amazing, I just need to invest in that new bulb for my lamp, or take my box outside! This folds flat for storage, too! ;o)