Simple and Larger Boat for Lego Duplo

This is a simple and larger boat for Lego Duplo. 
(Smaller one here : https://www.thingiverse.com/thing:6839947)

You can use it as a boat by simply placing a figure on it, or you can make it look more like a ship by stacking blocks!

It floats on water even with quite a few blocks stacked on it.