Blackmau5

Blackmau5 was a Hat that was added in the catalog on July 28th, 2017. The hat itself had no form. It cost 5 coins, with the exception of the second Blackmau5 hat added, which cost much more. Blackmau5 caused a stir in the forums, and users showed pride in purchasing the item. Blackmau5 was removed from the catalog the same day it was added. There were 3 versions, each costing 15, 50,000, and 5,000.

Trivia

 * Blackmau5 has no texture; it is invisible in-game.
 * Blackmau5 is one of the 3 Blackmau5's that were added.
 * Blackmau5 was removed in the same day it was added.
 * The three versions were incredibly expensive.