If you can scan your boxes, then get ClassicWB P96, install it. Create folder called share, where you will save your scans.
Boot ClassicWB, open that folder share (set as HD in ClassicWB). Right click anywhere and select option Icons >> Pic -> New Icon and boom. It creates icon out of your scanned picture. I tested it with PNG format, and it works great.
What I would like to know is how to combine two icon into one, with second icon being 'selected' icon.