I, however, have no stencils...well...except for the circle one below, so that's what I used.
Not my finest hour but I do have a fairly good excuse.
I have lots of help drawing these days. Seems the end of the Zentangle pen is just too tantalizing to resist. And the only way it can be properly attacked is at full velocity and by ambush. I never see it coming; a tiny fuzzball randomly launches itself over my right shoulder and BANG right on the lap desk, all 1 lb. 3 oz of him, where he then proceeds to flail at the end of the pen and attempt to get it to his mouth to bite. Any attempt to dissuade him is met with needle like milk teeth and razor sharp claws. The only way to counter the assault is to lob a highly developed missile (rolled up Post-It note) to the carpet and then he's off to disarm it... for 30 seconds and then we repeat the process over...and over...and over...
So please excuse my less than stellar attempt at this week's challenge. War is hell.