Are you looking for wooden boxes, or cardboard ones?
Back in the 1950s-60s, San Patela cigars came in a gray cardboard box that we kids used to re-used all the time...for toys, shoe polish kits, clubhouse materials, game pieces, dominos, etc.
My father used them to sort and store nails, screws, nuts, bolts, etc.

I'm certain we have a ton of these still in the house. Is there any value to them now? We have probably two or three dozen from when my father smoked (prior to Decebmer 1961 & the Surgeon General's report on smoking and cancer. He stopped cold with the last one Dec. 31st, 1961.)

not sure what you'l be using them for, but there are some in the window at the Capitol Hill Value Village today

When I lived in Philly all the cigar stores sold their empties. Some places would have a box of them out that you could search through, some you had to ask because they kept them in the back usually ran between 1-5 bucks depending on the type, and usually they were wood. I would search for cigar stores (not smoke shops but the people who specialize in cigars) and call and ask. I know there is a cigar store above the whole foods on Denny and one on queen Anne. If you need alot of a specific type they might be willing to hold some for you and you go by once a month and pick up a several of that one up at a time. Depending on what you're using them for you might want to throw some pungent herbs like lavender or Rosemary(fresh) in there to help counteract thetobacco smell ( I use them for displaying cards so the smell seeping into them isn't the best for convincing people to buy them) also if youre decopaging them airing them out for a bit before you seal them is a smart move

Almost any cigar store will have cigar boxes for sale if you go in and ask. Stores with a high turnover are best, obviously. I just saw a heap of them outside one the other day, priced at something like $4 each for the nice ones. Where was it? Ack. Somewhere in Belltown.