Make-it Monday

This week's Make-It is nature-made! As I was walking out to the mailbox this morning I saw this very strange looking mushroom. At least I think it's a mushroom. The top is a bit green, with a green liquid oozing out. Next to it are mushrooms that look like potatoes. I'm thinking the tall one may have popped out of a "potato." I would love to know what this is, if anyone knows!