Oh yes, I feel your pain - my Kalani is a chewer big-time! A couple months ago he chewed a thick plastic mat and 2 weeks later we ended up having to do all kinds of x-rays and bloodwork because he was still occasionally vomiting and pooping it out!
And then the other day I knew I dropped a button but couldn't find the darn thing anywhere - I look over at the couch and there's Kalani sitting with it sticking out of his lips and smiling at me - aaaggghhh! At least he's learned the command 'drop it' now