Nothing to do with a specific brand of effects but I keep on laughing at crucial typo's found in equipment. Now, I'm no saint either when in comes to correct spelling but hey... I haven't sold stuff (so far) with these errors.
Here's some examples:
Ibanez Master and 10 series
I have never seen a LED lim... I have never seen anything lim... I don't even know what "to lim" is. Or "let's go limming this weekend"..... what?
Ibanez 9 series silver Label
Still I Have never seen a LED lim....... Neither do I have a clue what an aikaline battery is.
Ibanez/Maxon UE400 PCB copper side
I have never been too impressed by Chuck Norris in his role as a Texas Ranger. Now, if he'd been a Franger..
Shin-Ei, pretty much in general
No please don't hit me with that batter. What the H#$$@ll is a batter anyway. It snaps OK....!!?