User blog comment:Nononsensecapeesh/94-97 Competitors - The Master/@comment-3412412-20141218132306/@comment-5687742-20141219001836

That's exactly how Yellow Peril and Running Rampant started out and they only have spinners thanks to the LEGO Ninjago saw blade and the only large Technic cog I've managed to get my hands on at present. I suppose I could count Brutal Destruction as a horizontal spinner but those flails were specifically part of the instruction manual for the kit I used to build it.