I liked the plot clock body designed by stylesuxx, but I needed to add some holes for the temp sensor and power cable. To use this, you'll have to print the covers and servo housing from stylesuxx here:

https://www.thingiverse.com/thing:940737

I prefer smily77's "v2" arms, and his PIR housing here:

https://www.thingiverse.com/thing:371248

Also, if you use Expo brand markers, check out these parts: ...for chisel tip: https://www.thingiverse.com/thing:3064267 ...for fine tip: https://www.thingiverse.com/thing:3056567

Also, don't forget to take a look at my latest revision of the plotclock code on the 'fine tip' page linked above. Enjoy!