You can simply use a keychain to put your keys together, but if you need more functions, the following El Jefe multi-tool keychain may be able to draw your more attention.
This is a simple yet practical keychain designed to offer you multiple useful functions for your daily life. As we can see from the images, the versatile keychain features ultra compact design, and is made of black oxided steel or bronze for solid construction and premium looks. Most importantly, the keychain also features three custom designed grooves that make the keychain double as a useful multi tool along with four practical tools including bottle opener, knife sharpener, fire starter, and the belt look hook allows you to attach the multi-tool keychain on your belt. Apart from that, the attached keyring effectively put your keys together for ease access.
At present the team of El Jefe is raising fund at Kickstarter. Pledging $38 will let you own the multi-tool keychain. If you’re interested, jump to Kickstarter official site for more details.