I'm partial to the car idea. The app Turo has some really, really cool stuff you can rent, everything from miatas to Porsches, lambos, Aston Martins, etc. Or even a track day at one of those experience places. I took my BF to the Porsche experience center for his bday last year and he still talks about it all the time; it was a super cool experience for me too, without getting to drive, and he had a blast in a 911 targa for a couple hours on all the different stuff they had (skid pad, one mile course with straightaways and twisties, drift circle, etc.).  Maybe a car thing and a concert? I don't guess many concerts are going on right now, though.  Congrats on whatever it is, by the way!