Amiibos are Nintendo figurines with a NFC (near field communication) chip and that can communicate with game consoles, i.e. devices and protocols for tangible computing.
“Amiibo (Japanese: アミーボ Hepburn: Amībo?, stylized as amiibo) is Nintendo's wireless communications and storage protocol, for use between compatible toys and the Nintendo 3DS and Wii U gaming platforms. It was launched in November 2014 in the form of system software updates and a series of Amiibo-enabled figurines, colloquially abbreviated as "amiibo figurines" or simply "amiibo".” (Wikipedia, April 2015)
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Amiibos can "grow". As such Amiibo-likes (and not the encrypted originals) could be used in physical visualizations.