When a friend of mine and I decided to first try contact printing with VDB, we went with a McGuyver/Rube Goldberg frame...we used a piece of glass, low tac tape, cardboard (split almost in 2 for a split back, and a large lightproof bag from an empty box of fb paper. We placed the neg on the glass, the paper on top, then used the low tac tape across the middle of the paper (so we could lift it without messing with the neg), then the cardboard on top...all secured with a couple of rubber bands. The whole thing went into the bag...and out we went to use the sun for UV. It was hilarious to look at...now that we've both bought print frames (10x12)...but it worked!