
He spent several weeks designing a unique device—a stroller for aquatic animals, which allows him to take his goldfish for a walk. This stroller makes the goldfish's life much more interesting; it is arguably the most adventurous goldfish ever—living in a bowl. Unfortunately, the goldfish has passed away, but this fish-walking device continues to serve its purpose.
Mark said: "The goldfish lived to be 12 years old, and I believe it must have derived some enjoyment from this lifestyle."





