I managed to grab a lot of really good[0] emoji domains by bouncing between registrars until you find one that has some poor (good?) coding that lets them slip through.
Then you get stuck a year later when they've upgraded their system and now nothing you do will let you renew it or transfer it...!
[0] "good" is subjective in this context
I did the same. Namecheap was the worst. They'd let me register one then refund me a few days to a week later when someone caught it. That was way worse than just saying no.