3DS Special Mii Abuse

Periodically, Nintendo sends out a Special Mii via SpotPass.  In the StreetPass Plaza games, these Miis give you special benefits.  So naturally, you want to see them more often than you actually do.  There's a way you can hack your own personal Mii to give it gold pants and have it show up for other people as a Special Mii, but... that only benefits them, not you.

Fortunately, there's a way that you can keep getting the same Special Mii over and over again.  These directions only ever seem to be posted on forums like the GameFAQs forums, where they'll get inevitably buried in the sands of time, so hopefully by reposting them here, I can save them from getting lost in that manner.

As long as you follow these steps verbatim, it will work.  I don't know if the process can be simplified or not, but I've done it this way on two different systems and it's worked for both.  These directions only work while Nintendo is still distributing the Special Mii, which generally happens for 24 hours.  As time ticks on, you do run the risk of losing the Special Mii forever, if that's something you care about.

So, how to do it:

1. Go to System Settings → Data Management → StreetPass Management.
2. Select StreetPass Mii Plaza's icon, hit Deactivate StreetPass, and hit OK.
3. Exit out of System Settings.
4. Go into StreetPass Mii Plaza.  It will ask you if you want to enable StreetPass, say No.
5. Select the Special Mii and delete it.
6. Restart StreetPass Mii Plaza.
7. Go into the Settings (it should start up with the Settings icon selected), and re-enable StreetPass.
8. Once you confirm that, it shouldn't take very long for you to get the blue SpotPass notification light again.  Make sure you have an internet connection available!
9. Restart StreetPass Mii Plaza to be able to greet the Special Mii once more.

This is megas useful nyoro~n for Ultimate Angler if you've got all the islands cleared, as in that game, Special Miis will give you a sighting for a mysterious fish that you haven't caught before.  Since all the special Miis that Nintendo sends out have their region set as "Nintendo", you'll also get a gold permit, which is otherwise rare and costs an arm and a leg if you want to buy one with play coins.

Edit (2015-10-30): It's important to note that when doing this, you'll most likely get a few other SpotPasses, which should mention a new panel in Puzzle Swap and the Plaza 4.0/4.1 update.  You can and should disregard these.  Also, apparently this can be done entirely from within StreetPass Mii Plaza, so long as you delete the Special Mii with StreetPass and SpotPass disabled, and then restart the Plaza and re-enable both StreetPass and SpotPass.  Hitting HOME a few times should make the "Someone's here!" message show up and from there it's business as usual.