The concretes are your best bet. Take a friend or a date so you can share, because no one has any business eating the whole thing (an entire pint!) alone. The cherry almond flavor is good but the turtle is even better.
Or, go classic with a custard cone. This seems to be what most kids get, but I found it a bit on the plain side. They also have seasonal flavors like pumpkin, peppermint, etc. Either way, get your sugar on and then explore the old-timey antiques and decor!