I keep getting ads in my emails for a zentangle tool. I looked in search and then tried to find tutorials here on these things, but couldnt find anything. The ads say how great the tool is, but dont really explain what they are, or how to use them or anything, youre just supposed to buy them and get all the info I guess. Has anyone here ever used zentangles, and what exactly are they and what are you supposed to be able to do w/ them? Thanks for any enlightenment! share t