Pacifier
A 10 feet wide, bronze colored watermelon appeared on Lex's desk, as if it was the most ordinary thing in the world. Lex, too, did not show an abnormal reaction to the massive watermelon, and simply summoned the Fruit Knife and dug it deep into the watermelon.
The massive watermelon began to glow, as massive, bronze watermelons normally do when they are being absorbed by a magical knife to upgrade itself. The process would take some time so Lex brought his attention back to the Inn.
A scan of the Inn right before the event began showed a little under 1 million guests. Even if not a single extra guest showed up, and he maintained this number of participants for the entire 3 months, Lex would make 4.5 times more MP than he spent on the event just from the room rent. Just that thought put a smile on his face.