Children's mugs (Horse, Cow, and Duck)

This is a set of 3 children's mugs. The horse is undamaged with only a small chip on the bottom. Unfortunately the cow and the duck have some cracks, but are still able to hold liquid. The cow also has a small chip on the inside of the handle, and a fingerprint by the chip. I believe these are either handmade or hand painted and have potentially been used before. See pictures for measurements.