Skip the hops its a waste of time and hops. Your main focus is the grow the yeast and not to ferment a beer
I've done it before, just messing around with things & doing a bit of experimentation about the flavors carried over. A couple pellets in a 1 gallon starter that's going to be pitched into a hoppy beer won't hurt anything, but it won't help anything either. A hopped starter going into a scotch ale or other non-hoppy, malt-focused beer can have a detrimental effect. Not to mention if you get big into rinsing & reusing yeast, you're just asking for trouble down the road. Not the "my beer's fucked up" kind of trouble, but potential off-flavors that can be a real PITA to diagnose. Just skip the hops.