According to a post by We R Memory Keepers, its Explosion Board can be used to make explosion boxes greeting cards and it will be available to retailers in November 2020.
From the screenshot.
We’re thrilled to announce our latest new release!
Create colorful kabooms of brightness and fun with the Explosion Board by We R Memory Keepers!
This handy tools lets you make explosion boxes for fun and dynamic memory keeping, gift giving, and more.
It features guides and measurements to help you create boxes and lids in 7 nesting sizes, and 7 heart templates for decorative corner details.
Make additional cards, pockets, and inserts to decorate the box panels, then add your photos, stickers, and washi tape, and your next project will be DIY-namite! Coming to retailers sometime in November 2020.