I've seen this dog try to eat CDs.
Only things he doesn't seem to want to eat is 1. Jello (he just puts it in his mouth, tries to chew it, gets weirded out, sets it down, licks it, then leaves it alone), and 2. broccoli (he makes a pile of it hidden in a corner. He doesn't eat it.)
I love him to death, though, but he keeps trying to eat my wallet and the money in it.