The other day for our learning activity time, I got out a pile of paper and our tote full of stamps. I just told the girls to make whatever they wanted. They completely loved it. McKenna (2) was so proud of her pictures that she literally carried them around for hours--and that wasn't just at our house. She showed everyone she saw her picture.
Stamps are great for working the muscles in hands, which is great for fine motor development.
This activity took no prep time and was fast to clean up! Very simple for mom!