Hello Chum Shark Funny Office Gag Gift Notepad - for Coworker, Boss, Manager, Friends Guajolote Prints Notepad. Hello Chum Friendly Shark Theme. Size 4.25 x 5.5 inches. 50 Sheets. Red and Blue Imprint. Glued on top. Durable Chipboard Backing. Made by Guajolote Prints.