Dopper Anti Toppler - Bottle Holder

My family owns a couple of Doppers, 'design' drinking bottles 'that save the planet',
and they are quite fond of them. To me they just save the accounts of the owners.
They're quite expensive, and we guys and girls know what plastic costs per kg, right?

Anyway, my biggest gripe is with the stability of this bottle. It topples at the slighest vibration
because the designers lost themselves in the looks, and made the surface only 35 mm wide.
I told Dopper that a real designer uses the principle "form follows function", and their reaction
confirmed my view (you could compare with Apple phones with which you couldn't make a call).

Anyway, here I give you the holder Dopper forgot.
There is a simple version of 60 mm inner diameter, and a voronoi 'design' version
(thanks to JustinSDK's SCAD library) of 62 mm that also fits small PET water bottles.

I wish you stable times ahead!