My son and I built a wooden T-Rex at one of the free workshops they have for kids at Lowes. They have them at Home Depot also and if you've never taken your kids, its a great way to get them started on building things.
He loved playing with the T-Rex so much that I decided I would build him some friends to play with. He requested a stegosaurus, triceratops (my personal favorite dinosaur) and a pterodactyl (which I haven't fully figured out how to do yet). I built the stegosaurus first to see if I could do it and then built the triceratops next and that is what this instructable covers.
Step 1: Materials Needed
1/2 inch plywood (size will depend on how big you make your dinos)
Optional for accessorizing:
Small Hinge if you want a tail to swing
Large Nail if you want the mouth to open and close (I actually used the scrap rod from a rivet)
Scroll Saw or fine blade Coping Saw for low tech
Bench Belt Sander or sand paper for really low tech