I did some sporadic abuse on the covers many moons ago to produce some alternate versions but it was early days and the work on them was a bit variable. So I've gone back to them and created something a bit more slicker. I'd even added a new Quarky varient...

Hardback notebooks based on these designs (along with some others that may be familiar to regular viewers of my tat) are now available from my RedBubble store here.