We were thinking about doing something similar in our Hall of Fame booth, but got sidetracked by too many other projects to follow through. Good on you guys for following through!
One thing that we were thinking about doing was giving out "official looking" stickers that teams could put on their bot or in their pit...they should say something like "Team 2081-Certified 1.25 Second Minibot". We'd definitely slap one on the old bot
If you need any help, let me know via PM and I'm sure our media folks will be able to help you out! (We regularly bring color printers to events)