I use One Piece characters for the same reason. My most beefy PC is Monkey D. Luffy and so on. Like you, I like the whimsy in using names from a fictional world, and some worlds have more names to choose from than others.

My first job, I named each web server off of a different Simpson’s character, all attached to a big KVM, so I customized each desktop to the character, so I could easily tell what server I was in.

Some people thought it was annoying, but the desktop picture had the character in the upper right corner. Away from the Icons, but you could glance ad see who it was and go right to it.

Also have used Simpson's for test data. There is some built in structures that can be used Abe-> Homer == Marge > Bart, Maggie, Lisa. Lots of people mostly remember them.