My wife really liked the "to do list stencil" (http://www.thingiverse.com/thing:1600919) and has been using it in her day planner... drawing checklists for different things, and when she saw some similar, more expanded versions of these stencils available for purchase online, she asked if I could make something similar...
So this is my first stab at a planner stencil... if my wife likes it, I may be making a more varieties. Feel free to let me know what you'd like to see as well.
This stencil is 0.8mm thick... I printed with an initial layer of 0.2mm, with 3 more 0.2mm layers above it, and it seems to have worked quite well.
Creating the stencil
Many of the shapes included in this planner stencil I designed myself within 123D, but I also imported (and/or modified) a few free vectors that were "designed by Freepik" (http://www.freepik.com/free-vector/assorted-icons-set_571202.htm)
(Attribution required, thus there is an attribution in the form of embossed text on the stencil as well).