Continuing the discussion from Loony Lids is an epidemic:
Can’t let this one go.
Available on ebay where the prices are scary.
http://www.retrothing.com/2007/10/kooky-spooks-in.html - which notes the first appearance (1979) and quick disappearance (1981?), as well as the “H.R. Pufnstuf proportions” and life-saving REFLECTIVE SILVER TAPE (3").
http://www.retroist.com/2011/10/01/kooky-spooks-halloween-costumes/ - which notes one appearing in Once Bitten (1985).
I don’t recall hearing of/seeing these before.