love your countdown! I would have used those if we had a home depot near us, but we don't! We did a chain...
In the beginning, it was huge (i think we did 120 days?!?!?) and it spanned the huge picture window in our livingroom!
then it got shorter and we hung it on the smaller window
of course, it's just hanging straight down now only on the left side, haven't taken a picture, but we only have 27 days so it's much shorter!!!

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a testament to how long we have had the chain?...i painted my living room in between these shots!