Looniverse series by David Lubar

An early chapter book line aimed at newly independent readers ages 6-8. This series combines fantasy and humor with it’s fast paced plots and interesting characters.
Ed, a seemingly normal boy discovers a strange coin that seems to take his life from painfully boring to beyond wacky. From friends turning into pool floats, prehistoric animals coming to life and his brother being able to control the weather, life has become very interesting for Ed and his friends.