Have a cup, need a handle?
Inspired by jasonalday designs https://www.thingiverse.com/thing:2668183
Needed a handle that attached at the bottom to not obscure the grinch face on my mug.
No glue or adhesive needed, the cup is tapered and the handle matches the taper to get a snug fit.
Designed in Onshape, model available here:
https://cad.onshape.com/documents/8a46735937a058ceb06fb0f2/w/c96c660f03c11aaf12179a62/e/6b84e86a5862b0c5be39689c
Inverted handle also available:
https://www.printables.com/model/50105-20oz-ozark-trail-insulated-tumbler-handle
The author marked this model as their own original creation.