An unexpected accessory is quickly catching on for a heartwarming reason.

After the Brexit referendum in June, Britons wore safety pins to show they were "safe" allies to marginalized people who were being targeted more than ever. The pin represented that the wearer would be a safe person to talk, commute, or just walk with.

After Donald Trump was voted our newest president-elect this week, Americans have decided to bring back the pins for similar reasons.

In just three days, hate crimes have spiked dramatically in cities across America. The New York University Muslim Students Association's prayer room door was vandalized by "Trump" graffiti. In San Jose, California, a man grabbed a Muslim woman's hijab and choked her with it. Calls to LGBTQ suicide hotlines have also skyrocketed since Trump's win.

This small safety pin can have a huge impact for all those afraid. Allies are sharing pics of their pins on social media, using the hashtag #SafetyPinAmerica

You can join the movement by wearing a safety pin, snapping a selfie, and tagging #safetypinamerica on Twitter or Instagram.