Wow, this is the same guy that did the sound-effects for Wall-E. I mention that because I watched a documentary/interview a while back about the sounds used for that movie. Turns out, it's the same guy.

https://www.youtube.com/watch?v=TSf8Er2gV_Q

The nice thing about that interview is that it had a few "demonstrations" of Ben making sounds from mundane objects. E.g. a slinky making "pew pew" sounds. Or objects making sounds for some of the old Disney cartoons. It's quite amazing what they were able to accomplish with relatively small constructions/gadgets.