Rock Balance

Inspired by twigs' blip of 18th March and the video she linked to:
https://www.blipfoto.com/entry/2422633512642284610
and then her own creation here today:
https://www.blipfoto.com/entry/2423787236572007373
I had a wee go myself on our table!  Next time on the patio so that I don't have to take them to bits!  I managed to get two to balance and so then decided to play around a bit more.  Great fun - thanks twigs! What have you started?