Lazer cutting cork

I sent my lazer cutting down around 11am yesterday and got it back today around noon - not very impressed considering what a small job was, but that just gives me reason to use the lazer cutter on Upper Queen St (I'm told they are both very efficient and nice) Anyway, the cork cut wonderfully, and I particularly liked the engraving. I noticed however, that the cuts need to be further apart in my experiment, as the cork was liable to break. Which it did, whilst in my bag, so the photo I have does not show all the cuts, but luckily one was left.