Sorry to drag up such an old thread but I just came across it and thought I'd share this. http://sites.google.com/site/pagekevinspenguinandbeaverpage/
I rode in a Penguin in the late 60's on Litchfield Lake in Quebec when I was 3 or 4 years old. I rode across the same lake in an Argo last November with the grandson of the Penquin's owner. I'm hoping to be back on the lake this summer with my Amphicar. This time it will be me giving the rides!