In most cases, wood isn't okay for swords at Comic Con Dallas TX. Wood is prone to breakage and doesn't give the realistic look and feel that metal or other materials can offer. Also, safety is a concern as wood might not hold up well if there's any accidental handling or contact.
I think in some comic books or cartoons, maybe a superhero like Superman could have his own zip code. It could be used for his secret hideout or something like that. But it really depends on the creator's imagination!
You might have luck at flea markets in Dallas. Another possibility is to look on online marketplaces specifically for sellers located in Dallas who are offering used old story books. Sometimes, community bulletin boards or local classified ads can also lead you to people selling such books.
I can't think of any off the top of my head. Maybe some superheroes or fantasy characters could have their own zip codes in certain fictional universes.
I think Harry Potter could have his own zip code. The Harry Potter franchise is so vast and beloved that it might warrant such a unique thing. It could be used for special events or fan mail related to the series.