Does everything from vintage live action comic villains, to guy in a big rubber suit monsters, to replacing someone's arm with a shrunken orangutan head. See terms section below.

"Tokusatsu" is a Japanese term for live-action films or television programs that make heavy use of practical special effects.

Some general suggestions

Strength 0.5-1.4 depending what sampler/prompt/steps/style/etc. In general, higher is more absurd and retro styled but prompt adherence/clarity starts going (but not always). Start around .7-.8.
talk about costumes, replacing body parts, give attributes of living things to inanimate objects (i.e. angry walnut, crying fire hydrant, etc.), or any combination of those things.
consider "costume" as a living being itself for crazier results when prompting, or as something one wears.
tell it what the costume is made of when needed
with shorter prompts at higher strengths, this is prone to plain solid color backgrounds. Mention background or what they are doing, and it fixes it. I don't mind it, but if this is popular and people would like me to, I'll take the time to retrain (and will replace the offending data set images with submissions from here).
see examples for replacing body parts. it takes patience and can't do it every time but is pretty consistent
An example image or two may have snuck in from an earlier training epoch. Apologies.

Terms to get started

costume of a {whatever you want}

{your animal/object/thing} costume

a 1960s live-action US TV villain in a chintzy {your animal/object/thing} outfit

{your animal/object/thing} head on {your animal/object/thing} costume

sexy {your animal/object/thing} costume

{your animal/object/thing}

{your animal/object/thing} monster

{your animal/object/thing} hero costume

costume of a {whatever you want}

Villain

Hero

abomination

abomination costume

Tokusatsu villain/monster/hero/henchman

retro live action comic style

{body part} replaced by {whatever you want} - if the object is not size proportionate and it is not cooperating, stick shrunken/mini/tiny in front. For example, if you want a luxury yacht for a body, make it a tiny luxury yacht

{emotion} {object}