Looping ad: Bright Dawn, Scorching Dusk, Lovely Night.
Same sub-brand, a different product each loop (swap 3 transparent PNGs).
Same product in a new colour each loop (blue, red, purple sneaker).
A different brand’s product, same template.
Loader: remove the product, add your logo, and the ship loops as a “sailing, wait...” loader.
Your own idea.