Party recently stole a yacht of an Efreeti.

Made from white obsidian and complete with twin fire elemental engines.Includes master bedroom, 4 crew cabins, kitchen, bathroom, plenty of seating & storage, pilots chair, and of course a hot tub at the prow. Currently, the ship is outfitted for transporting goods, and not for luxury at seas.

And yes, it's grided because the Efreeti is sending a hit squad to get it back.

Personally like the monochrome color scheme, as it fits the opulent style of the character and tells of story of interesting material choice for a magical boat.

The battlemap also includes an image of a real speedboat (the XSR48 made by XSMG Marine) that the vessel is based on for your viewing pleasure.

Hope someone might find it useful in their campaign, feel free to edit for your own purposes!