Bastion has a way for you to keep part of your patch collection with you wherever you go. Their new Velcro Key Tags are available in two sizes. The smaller version is perfect for smaller patches like ranger eyes/cat eyes. The longer version works with ranger eyes, tabs, or short name tapes. Both versions are available with either red or black edge binding.
While they are made to be a fun addition to your key chain, I could also see these used as gear markers/locators with glow in the dark or reflective patches. Check them out at Bastion.