One of the big challenges with making shaped cookies is getting the dough right. This often involves looking up different cookie recipes online and giving them a try till you find one that isn't too hard to work with and doesn't spread too much when baked. Even when you find the right recipe it can be difficult or messy, requiring freezing your dough before rolling and sometimes again before baking. A lot of recipes use the creaming method, which is a pain if you don't want to get the mixer out and deal with all the clean up afterwards.
There is an easier option. This is so easy that you'll kick yourself for doing anything else.
1 roll of cut and bake sugar cookies
1/2 cup of flour
Place flour on a smooth surface. Add dough and knead until smoothly blended. Once flour is well incorporated, roll dough on a floured surface and cut into desired shape. Bake as directed on the packaging.
You can use dinosaur cutters like these: