Which of these products was considered a major commercial failure in Ancient Rome that was quickly discontinued despite significant investment?

While the ancient world gave us many remarkable innovations that stand the test of time, not every product was a commercial success. Just like today's market, ancient civilizations had their share of product failures and discontinued items. Test your knowledge about some fascinating ancient product flops that once lined marketplace stalls before disappearing into historical obscurity.

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The adjustable 'Sella Curulis' chair with folding mechanisms that frequently collapsed during Senate meetings
Vitrum Flexile (flexible glass) claimed to be unbreakable but was too costly to produce at scale
The 'Oculus Noctis' night vision oil lamp that claimed to help users see in darkness but only caused eye irritation
Fermented fish paste tablets marketed as breath fresheners that ironically made breath smell worse