They have a tumbled edge, so cut the back edge; rub it down, and turn the good edge to match the rest.
But the main thing is to enjoy your day!
Thats exactly what I'll be doing, and is what I'm saying about the extra work. I guess I'll have to see how long it takes. I won't be charging £50 per metre, although I get the impression that was more of a dig than a serious response lol!?!
I was hoping for a serious response from someone who's used these mosaics before. I guess I'll just have to lay a few out, and see how the look, to figure out if the spacing can be adjusted, or if I'll have to be very careful with the setting out, as I was hoping to avoid L cuts around the window.