The NATO phonetics are so tired and old. This one uses popular fictional characters instead:
Aladdin Buffy Cruella Dorothy Edward Fiona Gandalf Hulk Igor Joker Kermit Lilo Mufasa Naruto Olaf Pikachu Quark Rapunzel Scoobie Tigger Ursula Vegeta Wolverine Xena Yoda Zorro
I’ve had a similar shirt for many years: https://www.geekalerts.com/now-i-nerd-my-abcs-t-shirt/
That’s awesome!