I need help with a commander deck build

Hey guys, I'm building a deck based around hitting your own creatures to win. I thought up an idea of playing ticking time bomb artifacts and proliferating them. Once they go off I'll hopefully have cards like [[Brash taunter]] and [[stuffy doll]] on the field. I've added copy artifact and creature effects for more bombs or stuffy dolls when the bombs detonate. Do you guys have any suggestions for making this a synergistic idea ?

My commander is [[cayth, famed mechanist]]