Not that I'm a stay at home mom but these are great ideas! The Stay-at-Home-Mom Survival Guide: Toddler Activities - peeling tape off the table (or fridge) develops fine motor skills (lots of ideas here)
This rainbow color sorting sensory bin is a great indoor activity for toddler and preschoolers. They work on colors, sorting and fine motor skills. A hidden way to make color sorting a self motivated activity!
Promote Fine Motor Skills with 30 Materials & Activities
30 Materials Activities to Promote Fine Motor Skills. This website gives many ideas for teaching small children fine motor skills. This is great for preschool and even students with disabilities who need extra practice with things.