Like boat delivery, here is a land delivery business for sale on eBay:
http://www.ebay.com/itm/Boat-Transpo.../152269261754?
And this one has been around awhile...
http://www.usdeliverycaptain.com/
Tried this last one when I got out of the Navy with a buddy, turns out, I ain't got no sea legs on top of the ocean, a short lived experience.
I have a niece who was part of a crew on a small yacht, she went to a culinary school and was the cook and food person...interesting job, she sailed all around the Caribbean.
I was a car courier in several ways, drove cross country to deliver them, from Ohio to FL, and also as I've written about working at 2 local Auto Auctions, one we picked up fleet vehicles on the East coast, the other I was a lot driver. Lots of these little oddball jobs out there which someone has turned into a fun and profitable business.
Boats, cars and trains...all present hidden opportunities for Fly Low and Collect the Dough cash cows.
GordonJ