Mine are all named for the colour of the case, or case accent when ambiguous, though network infrastructure items are named for their models, being the typical default.
I sometimes use A records or mDNS-SD for the actual services provided and use a *.home.arpa.
domain.
Another theme at another site is native fauna and flora names.
No cringe, no pop culture.
Assuming you mean IPv4 CGNAT: IPv6.