fyi: post-1982 pennies are made mostly with zinc, which, if lodged in the stomach erodes quickly and causes some serious ulcers. so. please check the date on your penny before allowing your child to put it in their mouth.
bennett's penny was 2004. a bit of erosion, but no signs of an ulcer. yet. that will come later when he is old enough to see all his mom has shared about him with the blog world.