server/computer naming schemes
dryicerx: As the post description, one of my favorites have been the chemical name system as you can also map the names to numbers.    Hydrogen - 1 - 192.168.1.1 
    Helium - 2 - 192.168.1.2 etc 

Another system I've been fond of is using the initial letter to be City names, but the leading letter corresponded to something (D - database, G - general purpose server, W - workstations, R - Routers). Not just cities, you can also extend this to car names, people names, or deities.    Databases - Detroit, Dallas
    General purpose - Gilroy, Giddings
    W - Washington, Woodlands

And another has been food which works if you have different sub-groups. For example groups can take on vegetables, drinks, fruits, meats, etc...