The Amstel Wood-Burning Hot Tub Tug by CoolShitiBuy This is the wood-burning hot tub that takes on the form of a tugboat. Worthy of a leisurely cruise on the Amstel, the craft is built in Rotterdam with a wood and fiberglass-reinforced polyester hull and powered by a 3.2-hp...... 4 2,868 $25,000 via Hammacher Schlemmer Facebook Pinterest Save4 Check it out