I believe they actually did reduce prices though, at least when compared with inflation. Current pyrex is really cheap, you can get a set of three medium sized mixing bowls for barely over $10 on Amazon right now: https://www.amazon.com/Pyrex-Prepware-3-Piece-Glass-Mixing/dp/B00LGLHUA0/ref=sr_1_25?s=kitchen&ie=UTF8&qid=1482355882&sr=1-25&keywords=pyrex.
If I was trying to recreate the look, I'd shop in the cooking/dinnerware aisle and find a clear glass mixing bowl set or cereal bowl set and replant something in it with new gravel/substrate. It seems to have a pretty solid base. Something like <strong>this</strong> maybe.
Pyrex Prepware 3-Piece Glass Mixing Bowl Set:
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