Listed below are some materials found on Amazon.com that, as a letterboxer, you might be interested in—or use the search box to the right to find other items on Amazon.com.
The LetterBoxer's Companion
The best book you'll find about letterboxing, bar none!
Speedball Stamp Making Kit
Carving stamps is easy, and this little kit has everything you need to start carving your first stamps in minutes!
The Letterbox Murders
When the harmless family pastime of letterboxing becomes a killer’s obsession, the search becomes more than simply a hunt for a hand-carved rubber stamp. Now it’s up to Detective Frank Gardner and his partner, B.C. Hawk, to unravel a series of coded clues which will lead them to the killer. (Just in case it's not obvious, this is a work of fiction. There's no actual letterbox murderer out there. None that we're aware of, at least!)
Moleskine Classic Notebook
The perfect option for your logbooks. I've been using them for years and love them! Lots of colors and sizes to choose from, but the 5 x 8.25 inch sizes are probably the most all-around convenient size to work with. Big enough for large stamps or to include several stamps from a series on a single page, but small enough to haul around as needed.
Speedball Speedy-Carve Block, 6" X 12"
One of the most popular carving block options—Speedy-Carve!
Speedball Linoleum Cutter Assortment
The carving kit is great, but if you really get into carving, this cutter conveniently lets you store the nibs in the handle and includes the complete set of nibs including the #1 size—essential for carving intricate details!
ColorBox Pigment Petal Point Inkpad
You'll definitely want a variety of ink pad colors for your stamping needs, and these ink pad will get you eight different colors in one, fell swoop—and the sharp points at the end are excellent for precision stamping! Click through to the link to see 18 other colors options as well. (That's 152 colors in total!)
Clues to Food
The world's first (and at the time of this writing, only) letterboxing cookbook! Recipes were submitted from letterboxers everywhere. You'll find tasty ideas for your home or perhaps for your next letterboxing gathering!
Zutter Bind-It-All, Version 2.0
If you want to start making your own logbooks—either for yourself or to include in your letterboxes—you might want one of these. They'll let you create awesome, custom-made logbooks very quickly! Don't forget the Owire to bind your logbooks with!