Kids normally love stamping prints of things with paint! So if you're doing a dinosaur theme and have some plastic toy dinosaurs around the house why not try doing some of their prints?
I gave my daughter her T Rex and a dish of paint that we mixed together using brown and red washable tempera paints. She wanted the color to be close to what the color of the T Rex was.
Once she had everything in front of her she got right to stamping the dinosaurs footprints. During this we talked about T Rex and what he might have been doing walking around.
She loved seeing the dinosaur prints she made!