What is the best guitar accessory of 2014? (poll 8476688)

What is the best guitar accessory of 2014?

Fender Slide Interface

G7th Performance 2 Capo

Korg Pitchblack Pro

Mono Guitar Sleeve

Planet Waves NS Artist Capo

Pedaltrain Volto

See this poll on: https://poll.fm/8476688/embed