Without A Paddle - Basic Puzzle Ideas

So I've been trying to think of some good puzzles we could use for this level, and I've come up with a few fairly basic ones. Are we still striving to make this like a Rube Goldberg Machine, though? Because all I could think of were tracking down the items you needed in the other sections.

That aside, I've sketched up two quick references:

 

So the layout I've thought of was to make this big area, which has 3 different sections. (to make it easier to think of) Section A will address an oil spill, B will be an inhabited area with a ton of litter, and C will have sludge line(s). We could probably just have ducks and maybe fish to simulate how bad water pollution is, assuming our players couldn't tell that from how horrible this water will probably look considering how it's just a slab of land/water that they'll actually see.

 

Section A:
I thought of two things we could do for this one. One of the most prominent images you see when oil spills happen are ducks that are covered in oil. So maybe a puzzle that involves washing them off?
Aside from that, I also thought about maybe tracking down the floaters used to help contain oil spills (or maybe tying together netting, empty bottles and stuff).

Section B:
Items that you would use in the level could be found here, since it's all just miscellaneous litter.
And as you use the stuff here to help the other sections, it helps clean it?

Section C:
All I could think of was to plug it up. We could have a timer on it so the plug would spit back out, and while it was plugged, you have to find a way to turn it off?

- Christina