I just entered blue to prove blokes can't choose colours and some other egit has voted for it.
Bad news Cazz there is more to this there are different qualities. [You must be registered and logged in to see this link.]
Blast brown not available in 6mm in this type. [You must be registered and logged in to see this link.]
You could buy enough green to do both?
Just keep looking at the options on Google for 5mm Brown Bungee Cord.
Though my personal favourite for your Green Un would be the Gold bungee. No no no it's not yellow.
I bought some for my Green Un alas the stuff I bought was not quite thick enough.
Just spent an age Googling when they changed the colours of a well known European countries flag.
Hope someone knows what I'm whittering about.