The Original Series prompted the creation of some very strange merchandise. Most notably, the notorious Spock helmet never appeared in the Original Series, although it did make an appearance in the more recent comedy Lower Decks.
Like the Spock helmet (officially "Space Fun Helmet"), the Astrotank was clearly created by a design team that had never watched Star Trek or did not care about product topicality at all. It had Star Trek written on the side and a sticker vaguely resembling the Starfleet logo. Tanks made only two appearances on Enterprise and none of them looked like this . . . thing.
Still, you can buy an Astrotank if you wish. They're occasionally listed on eBay, albeit for steep prices.
The Astrotank and Space Fun Helmets are only two bizarre items of Star Trek merchandise produced. You can see 7 others at Star Trek's official webpage, including a Star Trek V marshmallow dispenser.
-via @TheMekon_Venus
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