grigorusha Elementalix - 15mm (Micro Pyraminx)
The smallest pyraminx puzzle in the World!
forum link - http://twistypuzzles.com/forum/viewtopic.php?f=15&p=233873
http://bbs.mf8.com.cn/viewthread.php?tid=64111&extra=page%3D1
video: http://www.youtube.com/watch?v=CBGw5Vc3hwc

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also World's smallest Tetraminx
forum link - http://twistypuzzles.com/forum/viewtopic.php?f=15&t=19910
video: http://www.youtube.com/watch?v=ss9B_bs1hb4

you can buy stickers-set there
http://www.rubikkocka.hu/pages/kockamatricaeng.htm