Arm exercises in tandem with a hula hoop?

hyenagirl

I've started hula hooping 20-30 minutes a day (going to do 30 minutes). It's fun, but the arms just kind of hang out unless you're doing tricks. I do squats and stuff while I'm hooping to vary it up more. Should I get two smaller hoops for my arms to do in tandem, or should I be doing some bicep curls with 5-10 lbs free weights (also in tandem)? Does anyone do free weights with hula hoops on MFP?