Question: where is the tiny rubber ducky in the loading screen?
Answer: Specifically, you need to head to the point where quadrant H9, H10, I9 and I10 meet, which is south of Paradise Palms. You'll want to head to the small grassy area with five trees, which is close to the cliff edge. There you'll find an abandoned bathtub standing next to a tree. The Tiny Rubber Ducky is here.