I designed this to carry bubble tea (specifically a large [1000ml] from Presotea) home either by bicycle or on foot, but the parameters can be adjusted to fit any cup with a taper and/or lip.
The cord used is just dollar store paracord with a diameter of about 3.5mm.
I recommend using walls to achieve 100% infill for the entire cup ring, and at least the cord loop part of the handle. No supports.
The author marked this model as their own original creation.