OMG i can already see the attraction in frond of my eyes. how about they make an life size mystery shack (with some forest around it). and you go into the mystery shack, see some rooms and go into the candy machine so you go into de basement of Stanford. And then you go in a robocoaster attraction with the mystery golfcard as vehicle (like the Harry Potter and the forbidden journey Attraction in Universal Studios.) And during the ride you are together with Mabel and Dipper finding a rare species of some kind of monster ford wants to have. so you gotta go in the new mystery shack golfcard that Ford has given an upgrade, and find that species, but likely everything goes wrong, you have to face the gnomes (which Mabel will call buttfaces), the gremloblin and of course Bill Cipher, and at the end everything is alright. You step out of the attraction laugh at the horrible picture they made of you, and maybe buy something from the Mystery shack giftshop. yup thats my idea of greatest attraction ever. also love your art