The majority of tourist attractions offer their goods in reusable cups and containers. These reusable cups and containers can be purchased in most cases for a nominal cost above the cost of the item you’re already purchasing.
Souvenirs like this are great for kids (and for adults). You can buy a frozen drink in a reusable cup, or cotton candy in a reusable bucket, and you have an instant, affordable memento of your trip. Every time you use that cup in the future, you’ll think about the great trip you had!