This activity works on pincer grasp by sorting different colored ribbons using tweezers.
Tape some ribbon around each cup. Use different ribbon colors for each paper cup.
Cut a few pieces of each color of ribbon.
Put the ribbon pieces in the container.
Ask the child to sort the pieces of ribbon, using the first three digits (thumb, pointer, and middle finger) and put the ribbons into the right container.
For grading: ask the child to use tweezers for picking up the ribbons and dropping each to the right cup.