The animal cutouts were purchased from Dollar Tree. There were some other animals included in the pack and duplicates of each. Very worth the $1 they cost!
For the words I used index cards, a Sharpie, and funky scissors. I just write each word on a separate card and then cut them out. I had a title "Zoo Animals" and then the words were zebra, hippo, elephant, monkey, kangaroo, horse, giraffe, zebra, bear, penguin, sting ray, lion, and tiger. Your words might be a bit different depending on what's at your zoo.