Found two interesting you can see them here and here. Both talk about the convention used by people for the naming of hosts. Something I have also been long interested in. What can I say, geeks think about this stuff from time to time.
For the last few years I have adopted to name our hosts at home after the names of Simpson Characters, and sometimes that of precious stones. Currently I have barney, maggie, marge, abu and topaz.
We’ve used a few methods over the years.. Up until about 3 years ago, all my personal machines were babylon 5 related – vorlon, babcom, drussi, narn, minbar, jumpgate, centauri, terra, shadow, whitestar, aggamemnon.. (http://echelon.pinegap.net/~damien/stuff/network.html for a chuckle at ooooold-school hardware, from back in the day
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Our servers at work were originally all planets (jupiter, europa, pluto), then changed to Dr.Who races/worlds, when we changed sysadmins to a guy who was dr.who mad.. – sontaran, silurian, vardan, aggador, kaos, nimon, skaro, movellan, auton, ra, zygon, then eventually as we grew became more function-based.. i.e. dt-netsim, dt-master, dt-slave, prod.oracle, dev.oracle, test.oracle, prod.psql, dev.psql, prod.mysql, dev.mysql.. For other giggles, http://echelon.pinegap.net/~damien/isanetwork1.png that one goes back a good 6 years
Our sister company used Islands for all their machines – though I could never remember which machine was which – i ended up identifying them by static assigning their IP addresses in DHCP, and incrementing as they went clockwise around their office 
And of course these days at work, it’s completely functionality-based.. border, vms1, vms2, vms3, vms4, mail.clients, mailfilter, backup-mail, etc
At home, its more based on look.. – MBP is silversurfer, TC is tardis, video editing PC (which is black) is blackie, shed PC is simply ‘shed’