(Image credit: Pumpipumpe)

Harkening back to a time when we could go to our neighbors to borrow a cup of sugar or a power tool, a Switzerland-based project hopes to revive the OG sharing economy. Pumpipumpe is a set of stickers you can place on your mailbox, alerting passersby that you have anything from a bike pump to a kitchen scale to lend. Sticker packs ship for free in Switzerland and Germany, and for €4 internationally.

Neighborhood mailbox stickers let communities display items they have to share | Springwise