Implement the sulfur cube monorail bug as a feature

There's a recently patched bug with the sulfur cube where you'd attach a saddled pig in a boat to a sulfur cube via a fence post and a leash, and riding the pig while continuously charging with a spear would allow you to launch the sulfur cube (thus the pig and you) over long distances; which could be harnessed into an effective monorail system. This is a cool alternative to the elytria for fast long distance travel and I'd like to see it come to surivival.