Didja know ? Grumman decided to put the F4F-3 "Wildcat" on floats, and designated it the F4F-3S, "Wildcatfish".
There was a Spitfire on floats, a Ju-52 and a C-47, a Beech-18 (aka C-45), a Zero and a bf-109 on floats, and a Staggerwing, too.
I suppose, if you have the time, money ard...