Well, I suppose I'm pretty much the definition of this category! Everything that I sell was designed, parts ordered, kits bagged, documentation done, CDs burned and printed, orders filled and packages shipped by one person -- me. OK, I do occasionally get a little shipping help from my wife, and one of my sons helps out with packaging from time to time.
If you're looking for a keyer, I've got you covered. The PicoKeyer-Plus is, as far as I know, the only completely self-contained memory keyer available today. All the connectors, controls and even the battery are on the board. I offer it in kit form only, and if you can pick a soldering iron without burning yourself two out of three times you can put it together. I also offer it with an optional plastic case, already drilled and ready to go.
If you need something more elaborate, the MasterKeyer MK-1 is the most advanced memory keyer available anywhere. 30 memories, solid-state relay outputs for your tube gear, simple operation, USB keyboard input, Winkeyer emulation, and above all -- flawless CW at any speed, adjustable to fit your exact style and "feel". It's the only thing I don't sell in kit form.
The ID-O-Matic II is a very popular automatic Morse IDer that people are using for repeaters, beacons, link transmitters, and auto ID for their FM, SB and even Echolink setups.
The Universal Keying Adapter (UKA-2, about to be replaced by the UKA-3) is a solid state relay keying adapter that lets you key your tube gear (transmitter, amp, etc) from your straight key, electronic keyer, or computer. Think of it as an amp keying interface with a few extras, in super-easy kit form.
Everything is guaranteed for a year -- and I usually don't quibble about it. In fact, I've never charged anyone a fee to fix their HamGadgets kit or keyer regardless of how old it is, or how badly screwed up. All I ever ask is a couple bucks to cover return postage, and maybe the cost of parts if you blew it up yourself. I ship all over the world.
I'm easy to find. A quick visit to www.HamGadgets.com will get you to the web site, with all the information you want, email address, postal address, downloadable manuals, and more.