First start talking to people with tattoos find out the best shop in your area. Then go there and interview artists once you find one that you like tell them what you are looking for…something to represent your graduation. Ask them if they have any ideas on how to make that work on your body frame. Also it will help if you know about where you want the tattoo and how big. Someone on here can give you an idea but some ideas are just too detailed to make a small tattoo. Your best bet would be to ask an artist.