pallet houses

I have a bunch of pallets and was wondering If It would be possible to build a pallet house or building

I don't know the answer so I've added your question to a couple other forums that might get better results...good luck!
...and this will bump it up to the top of the list again

It's been done. Google and youtube are your friends.

Seems like it's best suited for a shed rather than a home [though there have been Tiny Homes constructed that way.]

Actually... they'd make pretty good walls for animal housing because of the natural ventilation [assuming you aren't in a climate too cold for the animals in question.]