There are two things that come to mind. One is a souvenir and the other is a picture.
1. My daughter received her first pin trade with Scoop on Main Street. I don't know if that is a good thing or not because it created an addiction for her. Neither of us knew much about pin trading. She sat there and watched Scoop make trade after trade for about 15 minutes. Never talking, butting in, or anything else. When Scoop was done, he engaged her and told her how well mannered she was. He wound up talking with her for about 10 minutes about pin trading and the only pin she had. Long story short, every minute of that meeting will be a memory along with the special pin she received from him.
2. My DD's first trip and my dad's last. I fought tooth and nail about going but got pressured into it. I think my dad knew it was near the end and why he pushed the issue. DD was only 2 at the time. She got the giggles at one of the stores, I think it was the Pop Century store. My dad started putting on the different silly hats and she just got more giggles with each one. When he put on a pink princess hat, she couldn't stop laughing and we got a great picture of it. Over the next 8 months, he took trips with each of the grandkids and family, then passed away as cancer took over.