I Must Have Bobo! By Eileen Rosenthal, illustrated by Marc Rosenthal

From chapters.ca:
When Willy woke up there was trouble. Where was Bobo? Willy needs Bobo. But, Earl the cat likes Bobo, too. A favorite toy is hard to share…even when it's a sock monkey. With sparse text and a modern- nostalgic vibe, this retro-fun book about friends (sock monkeys) and frenemies (devious cats) is an ode to favorite toys everywhere. Oh, Earl! Leave Bobo alone.