The list is almost endless. My mom one book of pressed pennys on a trip, and then she wanted to do 2 more books the next year - since she has three kids, she wanted one for each kid (even though the youngest of us is almost 30!). We became selective of which one's we would do, and still had no problems filling the books. Many stores in the parks have machines, outside rides (e.g., Splash Mountain). Each machine normally has 3 options for pennys. Also, the resorts have machines too.