This clever key-swapping system definitely feels like the future - Yanko Design

MSTR's Linx ensures that interchanging keys betwixt keychains will never be a headache again. Linx'due south rather creative central-swapping approach isn't time-consuming, requiring you lot to slide out a central by wedging your thumbnail into the keyring and rotating the key for minutes before it comes out, only to repeat the process, in reverse, for putting the key back in. Relying on a system that uses positive and negative shapes (think: jigsaw puzzle, or cardinal and keyhole), Linx allows you to simply slide the keyring in and out of its holder by matching shapes (seen below), and sliding the keyring in or out in a manner that's simply extremely soothing to look at!

The Linx quick release system comes made in titanium, letting it take a usage cycle that probably runs for centuries, never wearing out, and providing perfectly microscopic tolerances and a smooth sliding action every single time. Available in iii models, the Mini Linx connects to your keys, and slides into the Medium Linx or the Carabiner Linx, gear up to be strung, hung, or merely stored in your pocket. Sliding the keys in or out takes mere seconds, and tin be simply done through concentrated human participation. Its pattern, structure, and tolerance mean your keyrings will literally never slide out by accident… and swapping keys is a literal cakewalk!

Designers: Justin Heister and Jonah King (MSTRMND Collective)