So my cards are done, but of course I wanted a fun way to keep them together (other than a rubber band, of course).
I used the Cricut Explore 2 in the makerspace to cut glitter cardstock using a box template I created online. The cardstock looks great, and built a sturdy box, but it’s not great for adhering to sticker stock. Even gluing the sides was a little tricky. I used Glitter Glue (which contains no glitter, btw) and binder clips to clamp them, which did work.
The boxes were a teensy bit tight. Everything fit, but getting the top flap to go into the box to close them up was hard so I added Velcro dots to keep them shut.