I have done quite a few but enjoys custom knife only shows as well.If this is your first, don't expect a sellout and count this as a learning experience.It's like going to school.Dress nice but casual, comfy shoes as you will be up alot , stand as much as you can and engage your customers and ask what they maybe looking for.I would take as much as you can have built and afford to, empty tables don't sell. At a knife only show I don't setup without at least 12-15 knives and sheaths.At gunshows I have knives,sheaths,holsters,slings and whatever else I can put up.As far as type of guns, alot depends on your area but typically Glock 19 and 1911 holsters are always popular.Advertise if you want to do custom work and what kind you'll do.Have pics or a laptop to show previous work, better yet is to have power and a slide show on a laptop showing your work all day.There is some that say don't show prices but I have prices on all my goods and will continue to do so.Remember that there will be a ton of tire kickers but it only takes one guy to make your show.At a show several years ago, I was having a slow day then a guy walked up looked around and walked away, came back bought one knife and left.He then called me the next day and purchased the 12 knives I had left.He continued to purchase over 20 knives and at least 6 holsters over the next two years.Good luck and learn alot.Dave