To be fair, it was not found in our field paint but rather in a box of "backyard" paint that I sell the economy minded player.
It's actually two paintballs that were found stuck together. The bottom one is fairly intact and round while the top one is flattened and shaped into a perfect little hat! (The black marker features were added by one of our artistic field workers.)
Not necessarily something that made me mean and grumpy. In fact, I almost smiled when I saw it!