Shakespearian characters have a good range.
Non-UK place names and there are some really
odd ones out there.
Get's a bit odd - "cockburn has lost connection to dingdong".
I've also used some lovely African names, polokwane, tshwane, belabela
(Names in lowercase because that's how we use them).
You can then alias function onto the name (CNAME in DNS) so
webserver -> cockburn -> IP
That way if you want to move the webserver to dingdong the only change in DNS needed is the CNAME.