One of my nephews recently turned 3 and I wanted to make a special birthday card for him. He's obsessed with the movie Cars, so I looked on pinterest to see what others had done and found these cards.
I made a #3 template with scrap paper, then cut out the top loop until the underpass from one sheet of black cardstock, then the underpass and the bottom of the 3 with a second piece. I glued the pieces under the underpass section so the join wouldn't show. I used a white gel pen to add the dotted line and used pop dots to keep the upper track separate.
For the card base I scored a checkerboard and coloured half the squares with a grey pencil crayon. The car is a sticker.