Of all my son's Jack Jack figures, only the "metal" one floats.

Image from i.redditmedia.com and submitted by nepbug
image showing Of all my son's Jack Jack figures, only the "metal" one floats.

Sunnbergit on August 18th, 2018 at 11:28 UTC »

Unexpected.

UTTO_NewZealand_ on August 18th, 2018 at 11:53 UTC »

Plausible answer: Despite looking like your average chubby baby he's very muscular so doesn't float But in metal form he's not solid and floats as a boat would.

QED.

snaketankofeden on August 18th, 2018 at 14:24 UTC »

they have to use a different plastic for electroplating, which is more expensive than the other plastic. the denser plastic is cheaper and a cheaper process to produce(vinyl of some sort by the looks). the electroplating is cheaper than a comparable paint product and process... but it can't be applied as easily to plastics like vinyl. so they made the metallic one out of polystyrene(easier/cheaper to do hollow, thus floats) and then electroplate that.