https://kufiya.org/
There's an auto-queue and at the time of writing this there's like 3600 people in it (and an estimated like hour wait), so no guarantee of anything being in stock by the time you read this; but I figured I'd post this in case anyone was waiting on them to restock. 
The next time you see him, a off-hand "i like the keffiyeh/scarf you've got on" would show a lot of solidarity! It usually only takes one random compliment from a stranger to help people get past that initial 'I look like a dweeb' nervousness with any sort of attire/accessory.