<s>[INST] I have a collection of decks with a cardboard insert that has a series of cutouts so the cards can be poked through. The insert is pretty standard and sturdy enough but it is not a perfect fit for my deck of cards. There is a small amount of wiggle room that is not a lot, but it would be nice to get a better fit.

Is there a way to "shrink" or adjust the internal dimensions of the packaging using something like a hair dryer or heat tool to shrink or mold the insert to fit the deck more closely?[/INST]