the 6th immunity challenge of the amazon had tribes paddle their boats out to crates in the water to collect flags of animals and transport them back. thats really all i can think of. you could group the challenge from houdini magic and the challenge from amazon with boats brains and brawn. but other than that all i can think of is the amazon challlenge OR the second immunity challenge of fiji.
I think it's a pretty simple and common challenge to have been used only one time, but I don't know if it fits on Boats, Brains and Brawn. Also, I don't know about the Amazon one, but the one from Fiji looks more similar.