Inspired by my success with our Thankfulness tree, I started searching for tutorials on string Christmas trees...and struck out. There are a few, but they're all ugly! I had just about thrown out the idea when a picture popped into my head. I had been fixated on doing a tree like this:
...and added my pushpins along the edge of the tape. I somewhat offset the pushpins on opposite sides so that my zig-zagging yarn would do more of a V shape than a Z shape (it'll make sense later). I did NOT push the pins all the way into the wall, I wanted the yarn to wrap around the metal part first.
So that was our solution for a Christmas tree this year! I feel like our Christmas this year should have a tagline: "Christmas by push-pin!" :)