Ghost Lantern attached to any creature you control.
You control at least one additional artifact.
Steps
Activate Krark-Clan Ironworks by sacrificing an artifact, adding ({C} magic symbol) ({C} magic symbol) .
The creature dies, triggering Ghost Lantern, putting a +1/+1 counter on the creature it is attached to.
Animation Module triggers, causing you to pay ({1} magic symbol) to create a 1/1 Servo artifact creature token.
Repeat.
Once you have a large amount of counters on the creature with Ghost Lantern attached, you may activate its equip ability by paying ({1} magic symbol) , attaching it to any other creature you control to get infinite +1/+1 counters on all creatures you control.