At a popular lake for scuba divers in Minnesota, someone played a pretty epic prank by dropping a realistic statue of Jason Voorhees from the Friday the 13th franchise at the bottom of the lake.
Apparently "Jason" can be found at a depth of 110' in this lake, so it would be pretty disturbing to find him if you didn't know he was there. At the end of Friday the 13th Part VI: Jason Lives, the protagonists lure Jason into Crystal Lake where they manage to wrap one end of a chain around Jason's neck with the other end chained to a boulder.
The statue was placed in the lake in 2013, and in late 2017, they went back to see how the statue was doing: