This project investigates the user-experience problem of trust in a local peer-to-peer marketplace for borrowing and lending everyday items. "Stash" responds to a recurring mismatch between temporary need and permanent ownership: people may require tools, household goods, electronics, books, sports equipment or other items for a short period, yet buying them can be costly, inconvenient and wasteful. The underlying hypothesis is that a local sharing model could make underused belongings more accessible, but exchanging physical items with strangers introduces uncertainty around identity, item condition, damage, non-return, payment protection, personal safety and privacy. Stash therefore explores whether selected decentralised-technology principles can support a more transparent and accountable service without forcing users to understand blockchain concepts.