The red plastic cup -- typically "Solo"-branded -- is a symbol, at least in the USA, of unpretentious partying: ubiquitous at college parties and barbecues, and immortalized in the song "Red Solo Cup" by the late Toby Keith. Frustrating, SDXL, Pony, and it's derivatives do not know this (perhaps because these models are not very good at drinkware, generally, or perhaps because of the ambiguity of the word solo).
This is an attempt to rectify that. I generated 50 images with Flux containing red solo cups, and trained an SDXL Lora. It works pretty OK! If you like the idea, please give it a try and if you like what you see at least a little bit please post images to the LORA page.
"Red Solo cup (uh-huh)
I fill you up
Let's have a party
Let's have a party"
--Toby Keith, "Red Solo Cup", Clancy's Tavern