It's not that the name itself is funny, but on the NY Thruway in Rockland County, there's an exit sign for Nyack and South Nyack that says:
Nyack
So Nyack
I drive by it when visiting a relative, and every time I think "Nyack. SOOOO Nyack." Like the Nyackest that Nyack can be.
There's an off-ramp sign on I-5 in Washington that is the name of two towns, so it says TOLEDO VADER. I've been trying for years to formulate the right joke for it, but I keep trying. It might take an actual Star Wars fan LOL