Man, Michael Karpinski must be having some of those mushrooms that Mario thrives on when he created this Super Mario Subwoofer from scratch. Michael has taken the trouble to match the classic “question mark” brick from the Super Mario series of games, complete with a tiny stuffed Yoshi to complete the look. Whenever the volume gets cranked up, you can expect little Yoshi to experience a strange reverberation he never felt before! Don’t expect to purchase this as it is a custom, D.I.Y. job.

Source: Technabob