Harley bought a boat company, for the fiberglass production... so technically, with 51% ownership, the 1962 Tomahawk boat was a Harley

In 1962, Harley-Davidson purchased 51% majority interest in the Tomahawk Boat Company located in none other than Tomahawk, WI. The goal was not to move into the watersports market, but to gain a facility to produce fiberglass motorcycle parts as well as bodies for that golf cart I mentioned earlier.

By the 1960’s, saddlebags and sidecar bodies were being produced from fiberglass, so this move actually made sense and allowed Harley to produce 100% of their fiberglass parts in house. Within one year, Harley had ceased production of watercraft altogether at the Tomahawk facility and had completely bought out the company by 1965.

Found on http://www.hdforums.com/articles/a-harley-in-every-boat-house/  via  https://www.facebook.com/groups/111664952275098/?fref=nf