Zener Shop cat at Evil Mad Scientist Only one left in stock $0.00 Add to Cart Meet Zener (last name Diode), shop cat at Evil Mad Scientist. Zener specializes in shredding of cardboard and other paper products. You may also be interested in... Meggy Jr RGB Video Game Kit The Original Egg-Bot Kit d20 and d12 Handbags of Holding Kits Decorative Components Home > Products > Power Supplies