Transfer images from "National Geographic" magazines with Citra Solv. Cover your work surface with newspapers or a disposable plastic table cloth, and put on plastic gloves. Tear a page from a "National Geographic," and lay it on your work surface. Spray the magazine page with Citra Solv. Crumple the magazine page, and allow it to dry out. Flatten the page, and use as desired in your collage. Alternately, do not remove the page from the magazine. Instead, open the magazine and spray the open pages with Citra Solv. Close the magazine, and rub the covers firmly with your hands. If excess ink seeps out of the edges, wipe it away with paper towels. Let the magazine sit for several minutes. Open the magazine, and allow the pages to dry before removing them to incorporate into your collage.
Transfer pictures from magazines with packing tape. Tear a small picture from a magazine. Stick a piece of clear packing tape over it, and rub it down with a bone folder or the back of a spoon. Hold the image under a stream of warm running water, and gently rub the paper side with your fingers until it rubs off. The tape will stick to the image on the front side of the magazine. Let the image dry completely. It may curl, but this will not affect its usability. Trim to the desired size and shape with scissors.
Use an acrylic gel medium to transfer printed images. Print or copy the desired image onto a sheet of plain copy paper. Paint a thin layer of acrylic gel medium over the image, using strokes in a single direction. Let the gel medium dry. Paint another layer of gel medium over the first, this time with strokes in a different direction. Let it dry. Repeat this process with two or three more layers of gel medium. Change the direction of the strokes each time, and let the piece dry thoroughly between coats. Hold the piece under a stream of warm running water, and gently rub off the paper backing. You will be left with a translucent, slightly textured image. Let it dry thoroughly. Trim the edges with scissors if desired.