For first floor branch I used 23 cm long stick and every next is 1 cm shorter. 13 sticks in total.
To hold everything together there is bar in the middle.
This bar i got from welding electrode , slightly hitting with hummer and turning it around all that thing that is around falls off .
For better look I used chupa-chups as Christmas decorations. Tasty and beautiful present.
Hope you like it,