We have keyrings on our Merch Shop! 

It is made from brushed aluminium and stamped with 'WE FLY FREE'. 

A little about aluminium:

Aluminium is a metal of immense strength, but is also extremely light and ductile. It is super resistant to tarnish, corrosion, and rust. Aluminium is also hypo-allergenic and will not irritate the skin.