>>10075721but the stretchable kind that's made for rigging ship models, 0.03 diameter - they look flimsy af but won't snap in your hand
put a smol dab of CA glue on the least accessible anchor point, attach the loose end of the wire there with a bit too spare, you will cut the excess off later
wait for CA to bind
dab CA on the other anchor point and stretch or loosely guide your cable to it, cut the excess off
voilà
best of my examples that i currently have on hand, the vertical one was a real pain in the ass