Very fun xkcd marker! --Sourcerer (talk) 10:13, 13 August 2015 (EDT)
Thank you! We had a fairly steep grassy bank to work with so it seemed like a good idea. I have a vague
memory that someone has done this before; do you know of a previous example? Mcbaneg (talk) 10:29, 13 August 2015 (EDT)
