This is a shell with handle for an insulated, stainless steel lowball cup I got from Amazon. Print in your filament of choice, top down on the build plate. No support is necessary.
Cup is https://www.amazon.com/Strength-Stainless-Double-Wall-Insulated-Lowball/dp/B078B5CXHZ/ref=as_li_ss_tl?dchild=1&keywords=lowball+cup&qid=1585086436&sr=8-4&linkCode=sl1&tag=3rdpig-20&linkId=25541c00c000e993285d47638b8c2134&language=en_US
I've included the .f3d file so you can tweak it as needed.
Originally remixed from a thing from Tony_D. HIs works fine, but had a lot of greebling on the outside that I didn't care for, so this is a smooth version of it.
The author marked this model as their own original creation. Imported from Thingiverse.