Cold wallet provider Tangem is offering 100% gas fee cashback for users transferring Ethereum and ERC-20 tokens until March 31, 2024, as part of a promotional campaign. Meanwhile, the meme coin market is experiencing extreme volatility, with tokens like Shiba Inu (SHIB) and Dogecoin (DOGE) seeing price swings of over 20% in 24 hours. Analysts attribute the fluctuations to shifting investor sentiment and speculative trading patterns in the crypto market.