You can find…

a calculator (by gururamdas)
Instantly adjustable feet? A new slipper calculator. ? The Hook and I

a calculator (by amyo)
Instantly adjustable feet? A new slipper calculator. – The Hook and I

a Hungarian version (translated by fafinka)
Kotottsegeim - csak kotetlenul…: “Nem-ezelt” mamusz (szabad)forditasban

a Finnish version (translated by ertzuli)
ertzulinhullutukset: Non- felted Slippers

a Portuguese of Brazil version (translated by rebecart)
Armazem do Trico - by Rebeca Tisian: PANTUFAS unisex ! (com receita)

a Italian version (translated by Lana-Luna)
cose di lana fatte a mano: Le pantofole di Yuko Nakamura

a Japanese version (translated by sumikichi)
日本語版 Non-felted Slippers | ニガババロア

a German version (translated by Spiro)
Knitting Spiro: Non-felted Slippers Anleitung auf Deutsch

a Norwegian version (translated by MyNameIsBea)
Strikkepinner og andre pinner…: Tofleoppskrift :)

a French version (translated by Biscotte)
http://leslainesbiscotte.com/products/patron-pantoufles-non-felted-slippers-traduction-francaise

a Russian version (translated by iris68)
MY ONE AND ONLY: Big Slippers! Работа и мой Перевод!