Had when i worked in a preschool and kids love them! I would use colored sand instead of white salt. DIY salt tray with alphabet cards. Easy to make and kids have fun smoothing out the salt after correctly making the letter
Fine Motor Skills Needed at School and Classroom Activities to Help
Use finger aerobics in the classroom, home or therapy clinic to work on fine motor skills needed for functional tasks. Hand aerobics are a great fine motor exercise workout before handwriting tasks for the whole class! Perfect for the school based OT.