Amercian Wings museum located in Anoka, Minnesota has a collection of OV
-1s. I've seen seven airframes there from fuselage only to pristine airworthiness. They have at least one that is flyable and on the airshow circuit. The late founder of the museum was able to acquire a Mohawk that he flew in Vietnam for the collection.
There was one at the Selfridge Airshow in 2000 that was part of a US Army historical group. It was a civilian group with a variety of 1950s-1970s era markings. The two fixed wing planes were the Mohawk and Caribou.
I last saw an military Mohawk fly at the London International Airshow in Ontario, Canada in 1997. It was quite a sight.
Cottage Grove, MN