Which items are most likely to be highly elastic?

Could you please elaborate on which items are most likely to exhibit high elasticity in the context of economics and finance, particularly within the realm of cryptocurrency and financial markets? Are we referring to the demand for certain cryptocurrencies or financial instruments that tend to fluctuate significantly in response to changes in market conditions, such as price movements, news events, or regulatory changes? Additionally, how does this concept of elasticity relate to the overall volatility and risk associated with investing in these assets?