Need help with getting a gift for hubby for graduating with a PHD. I would like to present it to him at his graduation. Any great creative ideas?

How would you think you would like to be rewarded for graduating? HOLIDAYS. Unless he didn't get distinction, then no holiday but maybe he has earned a staycation hehe. But yah, when I finished my NITEC(highest education I have lel), I celebrated like crazy. All out holiday~