My mom is an avid crocheter (crochetist?), so I felt inspired to post this:
BBC NEWS | Mathematicians crochet chaos
The idea for the "Lorenz manifold" model came to the couple during the Christmas break two years ago.
Dr Osinga, who learnt to crochet when she was seven, was relaxing by crocheting some hexagonal lace motifs.
Prof Krauskopf asked her: "Why don't you crochet something useful?"
Eighty-five hours of work and some supporting steel wire later, they had something almost a metre across which looks not unlike a big Christmas decoration - which is what they are using it as.