I know Paul Moss sourced some 500ml spotters but the labels were a nighmare as the cheap paper ones just blead, John kelly said it took him ages to get the right ones.
Ideally you want a bottle, sprayer, label and cleaning solution for a £1.
Tell us how you get on, Paul Ashworth would be a good person to know as he used to be in the printing game and could source a good quality label.
Shaun