You can file eight or nine boxes of carts in one of those puppies. That would surely be enough space for all the existing sampler packs, right? There's two tobacco samplers, a menthol sampler, a fruit sampler, a coffee shop sampler, a soda fountain sampler, a holiday sampler. Add a cobbler sampler, and a pack of blanks, pack 'em all in one of those big boxes, and call it the Ultimate Ultimatum Carto Kit. Put an appropriate price tag on the whole thing, and *boom* you've got a sampler that will encompass nearly everything they have to offer!
On a related note, those magnetic boxes can also hold fifteen 5ml juice bottles almost perfectly. You could do a juice sampler of the fifteen most popular flavors as well, packed in a box and priced appropriately.
Have I mentioned how much I love those magnetic flap boxes that come with the UU kit?
That's an awesome idea!
But for the sake of not stepping on anyone else's toes, I'll leave it up to you more seasoned people to figure it out.