I developed a pseudorandom on-chain picker meant to distribute assets (ERC-721) to members of gmDAO.
See the medium article explaining how it works here: https://medium.com/@thras.eth/how-gm-etros-randompicker-works-f26a11ce7d3c
Mainnet version: https://etherscan.io/address/0x12a28918ed37a9aa5945491a208b31f4f2916c31