What is a group of Souvenirs called?

A group of souvenirs is commonly called a Clutter. Other collective nouns you may see include Shelf and Suitcase.

Collective nouns are words used to refer to a group of similar or related items. When it comes to souvenirs, which are typically objects or mementos obtained while traveling or visiting specific destinations, there is no established collective noun specifically designated for this category. However, to describe a collection of souvenirs as a group, we can use phrases like a collection of souvenirs, an assortment of souvenirs, or a bunch of souvenirs. These phrases effectively convey the idea that the souvenirs are gathered together as a unified set, representing a collection of memories, experiences, or places visited. Whether it's a collection of postcards, keychains, t-shirts, magnets, or any other kind of meaningful keepsake, referring to them collectively as a group highlights the connection and memories they hold.