Developers can deploy a Token Jar in a single transaction to configure payment tokens, pricing parameters, and destination addresses, with options to modify or permanently lock settings.

From the articleUniswap Labs launches TJAR with Robinhood as first partnerAlso in Uniswap's Token Jar lets apps collect fees in a single token of their choice, Uniswap Labs opens fee conversion tool TJAR to apps, starting with Robinhood