My co-worker Aaron sent me this link to Dinner in the Sky. It's not airplane food but a table suspended 50 meters in the air "by a team of professionals." Twenty-two diners get the table for eight hours for about 8000 euros. Don't worry if it rains; the table has a canopy. I assume dessert is "pie in the sky."
Too bad this didn't exist—or I didn't know about it—when I went to Belgium for IPP; I'm sure I could've rounded up a few people to try it with me.