Buy this product: Small Sound Dinosaurs.
These approximately 3" x 8" (assorted) dinosaurs made of a soft
realistic looking plastic ROAR when they are touched or moved, and
their eyes light up. (Controlled by a pull on/push off key on the
belly). They come with a small tag that gives some interesting
information about that particular dinosaur. Childrens
imaginations will run wild. Add this with your block area and the
possibilities are endless. Appropriate for ages 3+.