Encourages visual memory, copying, direction planning and movement. Can grade the activity by only having the colors needed or having the child pick the colors out of a bin of numerous legos of different, shapes, sizes and colors.
Toddler threading activity with giant cardboard beads. Could be a little project to have them paint the tubes, let them dry, and cut the tubes into smaller lengths (with some help). Add stickers for decoration and even more fine motor practice!