Girls My Little Pony Swimsuit. Get your little equestrian girl ready for pool parties at Ponyville in this adorable bather! A blue MLP bather with a fun print of pony Rainbow Dash with her rainbow coloured mane and tail. Complete with a with a blue frill overskirt. Add some magic to your little ones summer wardrobe. Your little one will be galloping around the pool in this bathing costume.