Build an add-on to existing website

I have a website designed to illustrate the proper wear of common Boy Scouting insignia and uniforming items. One of the things I have discovered over the years is that many volunteers do no know how to properly wear the various patches representing national, regional and local Scouting awards and decorations. There are several military "ribbon stacking" websites which allow the user to "select" the various award ribbons they have earned or received and the site would "stack them" so that the user can print or view how they should look on the uniform. I would like something like a "ribbon rack" application to be able to be used with the various Scouting awards -- a "Square knot rack" application. The best part of this is that unlike the military version, which arranges the various ribbons according to importance, the "Square knot rack" only arranges the cloth square knot emblems in the order the PERSON VIEWING it desires... Take a look at [login to view URL] to see what a military "rack builder" looks like; take a look at [login to view URL] for the BSA's various square knot "ribbons". Of course, please contact me and I can further clarify what I am looking for.