Brick Bottles

I've been hoarding nice old bottles for years, with the intention of doing something like this.
The bottles accumulated, the job never got done.
So finally got around to doing a few never done jobs today, including this bottle job, sorting old Lego into colours to drop into the bottles. They'll sit outside around the shed and look much prettier than a bunch of old empty bottles.
It was most satisfying and fulfilling to do a mundane, creative endeavour and get a job finally done. Less guilt now when seeing the row of empty glass bottles.
What's your never done job?