There is this reusable bottle that is sold by many brands (see pictures). The problem with this design is that the base breaks very easily, and despite it does not render the bottle unusable, it makes it really ugly.

This printable is a replacement base for those bottles.

I have printed the base in Flex material, so that it is flexible and wraps perfectly around the bottle.

In our case, the bottle is that from the Port Aventura theme park (in Spain) with a Woody Woodpecker drawing, but you can find it in many other stores and sold by many other brands.