Why am I even asking myself that??
In case you don't know:
A CONVENTION IS A TERRIBLE TIME TO HAVE A PROP.
They look so awesome, butbutbut it gets in the way, sometimes you have to check it in, damages (to people generally), blahblahblah....
Yet here I am, considering a parasol. I've done this before. And parasols are terrible, because...they're open and at face level. I know I should just get a purse and a fan and be happy.
...
BUT THEY'RE SO FLIPPING LOVELYYYYY OH IT CAN'T BE THAT BAD --
It's bad.
My advice:
Don't bring a prop unless you really need it, or if you're good enough to just pose all day. Forget panels, forget artist