I think there is a £6.99 option available now, obviously not from the 'big boys' though!
I have a sachet at home to test, however it sits un-opened cos once open it will not keep. I believe it is packed in an oxygen free pack ( nitrogen? ), so once opened, use it.
I considered it for tagging plugs and sockets in a model, using the different colours, providing finger grips for the plugs and sockets.