Here is an assortment of keychains which contain the Gridcoin icon.

Contributions of computing power donated to certain BOINC projects are rewarded with a cryptocurrency called Gridcoin (GRC).

BOINC is a client for distributed computing - anyone can contribute computing power from their GPU and CPU to various scientific research projects.

Learn more here: https://gridcoin.us/ https://en.wikipedia.org/wiki/Gridcoin https://en.wikipedia.org/wiki/Berkeley_Open_Infrastructure_for_Network_Computing

Download BOINC client here: https://boinc.berkeley.edu/

Source Image Attribution: https://commons.wikimedia.org/wiki/File%3AGrc_universe_logo.png https://upload.wikimedia.org/wikipedia/commons/7/79/Grc_universe_logo.png By Joshoeah (Gridcoin General Use Logo Pack - Hi-Res PNGs) [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons

Gridcoin Donations are greatly appreciated: SJQxqUJtpt4vaEBzvVN9uRMk1UzurbTwgU