Small artificial Christmas tree stand

The flexible insert was made with PolyMakr's PolyFlex filament. Less flexible than Ninjaflex but easier to work with. The holder itself is in PolyMax. Done in sort of a rush, so it is unfinished, but it does what it's supposed to do. The idea was to use a flexible insert to take up the shocks from bumping the tree and from random attacks by the cat. It also makes measurements of the tree less critical than if the tree were to go directly into a rigid base. I'm not a mechanical design engineer, s