Just get the ones at the parks. If they break just take them back to any store in the park and they will replace it for free. I bought one for DD on our trip in 2001- it broke on our trip in 2002. We went to buy her another one and I mentioned to the CM that her pen stopped working so we were buying a replacement. She told me no need to buy another that they would replace it. The first one we had was the click type (where you push the top and the point comes out) - the CM said to get the ones where the tops come off. They hold up better and she said that the characters actually like them better.