Fashion in a Can

Via New Scientist:

Particle engineer Paul Luckham and fashion designer Manel Torres from Imperial College London combined cotton fibres, polymers and a solvent to form a liquid that becomes a fabric when sprayed. The material can be built up in layers to create a garment of your desired thickness and can also be washed and worn again like conventional fabrics.

I like the use case for spray-on bandages with drugs added to help the healing process.