Hobbyhorse show jumping thing!

My daughter loves her hobbyhorse and she loves to jump around... ;-)
I decided to build a hobby horse show jumping thing!
So she can build her own parcours to play with her hobbyhorse.
Perfect weekend project!

Quite easy to build and easy to print.
All needed things should be in every household (with 3d printer)
You'll need:
6 empty kitchen towel rolls
2 empty cardboxes
2 empty 1,5l bottles to fill with water
The printed things...
To line up the holes for the holder you make the hol