Special Mii characters are ones you can take to your Mii Plaza. They are the ones who wear golden pants. If you don't have enough, google QR codes for special miis then click into the Images link for some more.
Also google 3DS QR codes golden pants... lots more out there guys! If you find some nice ones, please post them here on site for ease of access for other members. Thanks!
Have gotten some special Mii characters here... I hope these work for some of you. Some are EU and some I think are US. Let me know.
These are not special Mii golden pants characters... but they are neat ones to have! Check out the vidoe for 3x Nintendo staff Miis. Just pause the video at each QR code and load them on to your 3DS.