Don't rightly remember which of several over priced little gadgets I bought first. Probably was a Blu or nJoy product. I just remember that I was paying a lot for a bunch of nothing. Seems like they would actually work ... for about 1/2 hour or so before becoming so weak that you'd be better off sucking your thumb.
Then I found this place called "MadVapes", and they had all sorts of little gadgets. Micro switches for as little as a dime, 510 connectors, (I think they were 99 cents back then) and what else did a guy need to make a mod? I made all sorts of mods for around a buck each. If it was a can with a hinged lid ... it became a mod.
Some of them actually worked quite well.

I still have this one. (cost $2.20)
My first "real" mod was a Mako Midi. I bought it the later part of 2010 (I still have it too)