Well, I'm presuming it has to be something at least humanoid to work as a way to get her off the kid. Getting obvious trash wouldn't even plausibly get her to do anything past throw it away. Getting someone who's obviously unsuitable like Julius Ceaser or Leonidus would be more funny, though.
Obviously, whoever she summons is going to be her new Replacement Goldfish just to tie up her loose end.
So... Congrats on summoning Geronimo!
(Obviously, it won't be, but come on, we all know it's going to be something much, much rarer than whatever real players get from a YOLO spin.)
I mean, yeah, the Summon Tickets usually aren't worth jack-squat, but I personally have gotten Summer BB and the occasional 4-star from them, so it's theoretically possible.