Graduation gift for my two best friends itance needed...?

This is going to sound crazy, but it'd be one of the best memories ever. I would say take em out to dinner and surprise them with this gift. So, the dinner is the real gift and the gift your going to give is a bit of a gag. One of the best memories I have is my 21st birthday. My family took me out to dinner with my newish boyfriend and my aunt handed me a brown paper bag and said happy birthday!. I tore it open to find a vibrator and lube. Everyone busted into laughter and tears. I was so embarred but I laughed, too. And let me tell you.. It is still an awesome gift... *wink* :P it would be something they never forget.