As evidenced by the photo below from August 2014, our visitors from Germany took their ironing duties quite seriously, in the knowledge that Extreme Ironing was in fact invented in Leicester. Needless to say, we have the book, as shown on the table in the photo.
Extreme ironing has not yet translated into a professional sport sponsored by manufacturers of irons or ironing boards, although the German language once again demonstrates efficiency by condensing the translation of extreme ironing down to just one word, albeit a compound word.
For further edification see the fascinating article under the heading The Finely Pressed, Death-Defying World of Extreme Ironing.
Deutsche Infos zum Extrembügeln gibt es auf Wikipedia.