A fun commemorative gift could be a personalized photo album. You can fill it with memories of a special event or a journey together. Another option is a custom-made keychain with an engraved message or a symbol that holds significance. A unique puzzle with a picture of a shared moment can also be a great choice. For tech lovers, a customized phone case with a memorable design is both practical and fun. Or you could give a hand-painted mug with a cute illustration or a quote that reminds you of the person. These gifts are not only fun but also carry sentimental value.