Again a pinterest idea.
Unfortunately on a mirror pencils slide and roll away. "Blu tack" would have been very handy here, but I didn't have any. So with I worked with ordinary sticky tape. After a while I noticed that it is best to give each pencil their own piece of tape.
You do not want to know how many times my stacks collapsed, but I do have a few photos which I like (also with thanks to Photoshop to be able to get my dirty fingers of the mirror)
you are a bona fide 365er for that extraordinary patience and self-discipline and ingenuity just to come up with a photo. it doesn't matter that you got the idea from somewhere else, you did it and you made it your own. aces, ingrid. aces!