A disk would be cheaper. You can get them for pennies each.
CD-R discs, take a whiel to burn them all but one could setup a few spindles of 100 each at a gun show with the files on them.
Heck, why not call it a ‘Freedom Download’ and include an entire library. Everything from The Constitution and Declaration of Independence, Federalist Papers, Eaker’s Survival manual, various 3D designs like this one, and a lot of other ‘banned’ knowledge.