Found this little chap on my Clematis just now. He proved a perfect, uncomplaining model for this challenge! I’m not sure exactly what type of bug he is, he could be a green shield bug* but doesn’t seem quite so ‘shield’ shaped as others I’ve found in the garden in the past. Perhaps he’s just a rugged individualist! Anyhoo, I think he’s a cutie pie and could he look any more like a bit of leaf if he tried?
* this has reminded me – my mum used to collect green shield stamps from the grocers when i was a kid. If you spent a gazillion pounds and collected about 200 hundred bookfuls of them you could exchange them for a toaster or something. Happy days! 🙂
Rebooting 
My mother also collected Green Stamps (in the US, the ‘shield’ part was removed), and there was a parody song about them to the tune of Greensleeves, done by Flanders & Swann? I think.
Oh I’ll have to look that up! Yep I think you’re right it was Flanders and Swann