Baby Driver, with its turning, rattling steering wheel, spinning arrows, squeaky horn, and clicking, moving gear shift, teaches cause and effect and develops eye-hand coordination, motor, cognitive, and language skills. For ages one year and up.
Carousel Bells: well-tuned metal carousel bells. Strike or drag the mallet over spinning carousel for cascade of notes and colors. Develops auditory and spatial awareness, eye-hand coordination, fine motor, cognitive, and language skills.
I am not a big plastic toys fan, but Lukas and Liv both really like this clown. Together with the big, plush cube thing it is their favorite toy. (An honorable mention goes to the "My Barnyard Buddies" set Mom gave me - you can ask her where she got that...)
Activity Teether, with its high contrast colors, distinctive shapes and textures, and encased beads, provides visual, tactile, oral, and auditory stimulation and teaches cause and effect. For ages three months and up.