Rowboats
Simple design with purely cosmetic function.
Sailboat Upright
Contains a chest at the front that can have some good rewards (ender pearls are also rarely found)
Sailboat Sideways
These have a chest that spawns a random distance and direction from the boat. Easy to find on land, much harder in the darkness of the ocean.
And the Schooner
This took a long time to create. The schooner defaults to an Oak Hull with a Birch deck.
Each port hole holds a dispenser with up to 9 arrows left inside.
Captain’s Cabin
The crew quarters
And the treasure room. in 1.2 hold a block of iron and another block of either gold, emerald, or diamond.