The lines between art and footwear can often become blurred.
Whether its unicorn-shaped heels or footwear made on a 3D-printer, we've rounded up 20 of the most unusual shoe designs - frrom the irreverent to the downright gaudy.
Eamz Tara - United Nude
If you're looking for a classic T-bar style in patent metallic fuschia snakeskin, with an obscure design inspiration, United Nude is the place to head.
These beauties are inspired by the 1956 Eames Lounge chair.
£205, United Nude
Invisible Shoe - Andreia Chaves
Brazilian designer Andreia Chaves fused her knowledge of optical effects and 3D printing to create these eye-bending runarounds.
Price on request, Andreia Chaves
Pop Art - Milly J Shoes
Movie fan? These are the heels for you. British designer Milly J creates all kinds of unconventional heels from her base in Hertfordshire.
£360, Milly J Shoes
Finnish shoe designer Julia Lundsten is behind London-based FINSK, which excels in unique designs that will make you look twice, like these contrast heel lace-up boots.
Yellow Mercer heels - Privileged
Cartoon kitsch with a Chanel-inspired ankle chain. Fantastic.
One who charms unicorn heels - Irregular Choice
Let a unicorn lift you through the day.
Ice doll - Jeffrey Campbell
Kind of fun. Kind of eerie.
$264.95 (US only) Ashbury Skies
Maya - Alexander McQueen
We can't see where these McQueen stunners begin or end.
Nova - Zaha Hadid and Rem D
When the world's of architecture and haute couture collide, you get this kind of awesomeness.
Zaha Hadid and United nude's Creative director Rem d Koolhaas collaborated for these chromed vinyl creations.
£1,300, United Nude
Bicycle - Kobi Levi
A British-themed bicycle is the latest offbeat addition to the avant garde shoe designer's extensive collection.
£962, Kobi Levi
Pearl platforms - Nicholas Kirkwood
Made in Italy from suede and pearl, these sleek slippers should be handled with care.
£630, Nicholas Kirkwood
Exoskeleton - Janina Allen
Terrifying and beautiful designs from the London-based footwear designer.
Price on request, Janina Allen
Doorstop wedges - Lisa Berry
This striking doorstop design by Lisa Berry showcased at the Edinburgh College of Art show in London in May.
Uh-huh - Irregular Choice
$239.95 (US only) Ashbury Skies
Fang - Iris Van Herpen
Feet with teeth.
Price on request, United Nude
These uniquely shaped ombre ankle boots from Christian Dior made an appearance on the runway in Paris last month.
Price on request, Christian Dior
British designers Ashanti Lou have been designing wild and wonderful custom-made shoes fro three years.
From £120, Ashanti Lou
Twisted sandals - Julian Hakes
Avant Garde amazingness. Put them on your feet - or your mantelpiece.