Word Association

Macrophage

Micro

Microscope

Microorganisms

Bacteria

Activia

Yogurt

Smoothie

Shake

Shake it shake it

Snow globe

Electric guitar
(I hate that the first thing that came to mind was a minions reference)

fender

Defender

the fender

Gibson

Gibss

Apoco-fists

doom fist

Doctor DOOM!