For Cupcake, I got Black Widow: "Your dog is athletic, independent, and may have a few tricks up her sleeve to get an extra treat or seven from you, darling."
For Donut, I got Iron Man: "Your dog is a confident canine who isn't afraid to strut his stuff."
I guess they are somewhat accurate. Cupcake more so than Donut, but he's still a puppy so it's hard to gauge his personality. (More timid/nervous than Iron Man would be haha!)
Semi-related sidenote: Sas, do you still have those Stick/log photos of Squash? (I think you or someone else made it like a comic?)