This shape matching activity for toddlers has been the perfect fit for my preschooler. Also, if you invest in a few basic supplies, this free shape printable DIY project is basically free.
Printables:
Free Dinosaur Printable for Toddlers: Learn Dino Names, Practice Matching, & More
This dinosaur printable is perfect for 2 and 3-year-olds, features 23 dinosaurs, costs $3.75 to make, and is completely free to download!