Dominic Wilcox has been sharing his "odd yet perfectly logical invention" ideas in a virtual sketchbook, Variations on Normal, since 2009. The fictional inventions the British designer and self-proclaimed "thinkerupper" has come up with include a dual-purpose coffin and accessories that make drinking directly out of a bottle of wine more stylish.
He self-published his first book of drawings in 2012 and earlier this year an updated version with 28 new drawings was launched by Square Peg.
Here are eight of our favourite drawings from Wilcox's inventive imagination.
Dominic Wilcox will be a speaker at Design Indaba Conference 2015, which takes place from 25 to 27 February 2015. Secure your seat before 9 December 2014 and qualify for a 10% discount. Book here.