Nice to see this posted on HN! A while back ago I used them for the design of a site a built https://cmdchallenge.com/ https://cmdchallenge.com/ which gives it

Nice to see this posted on HN! A while back ago I used them for the design of a site a built https://cmdchallenge.com/ https://cmdchallenge.com/ which gives it a nice feel of achievement badges without using standard emoji characters that may look different depending on the client.