TpT Store! They are called Monster Truck Matching! with lower case and capital letters and Monster Truck Matching! with numbers, tens frames and dice faces.
I used these this week with my students (forgot to take a photo!) and I punched holes in the two sides of the cards, gave the group Counting Links and they had to match the cards and then thread them both onto the links. This added some fine motor skills work to the task as well.
This activity contains 63 cards with monster trucks on them (21 each of
number, tens frame and dice faces). This could be used as a quick maths
activity or stations activity for matching numbers 0-20. The product is
made using Victorian Modern Cursive and fantastic monster truck clip
art! It includes one recording sheets that has the numbers on it
You could even punch holes into the cards and use Counting Links to join
the matching cards. This adds a fine motor skills component.