What should I sell for this?

My friend is a up and coming rapper and he has a show coming up on 4/20. He wants me to sell stuff with his name on it so we could make a profit and hopefully get him some studio time. Anyway I have been looking at ideas for a couple of weeks. I tried silicone wristbands, t-shirts, pens, lanyards, etc. The only problem with those is they wont ship in time for his show. Any ideas. I really could use help on this one.