Tri-fold presentation or foam boards are great for displaying photos at your graduation party. They come in a variety of sizes and a few different colors. Bigger ones are better (36″ x 48″ is the best size) as they will hold the most photos. Tri-fold boards can be purchased at any office supply store like Office Depot or Office Max.
Try to use dots, stripes, lines, curls, italics, bolds, underlines, and different sizes to create your own specific tone and technique. Doing something casual and neat for a friend can include a lot of different types of lettering