Hostnames for my machines:

• optimus
• chrome
• brick
• deedee
• dexter
• jack
• hack
• ack
• mainframe
• hamutaro
• muffins
• moo

potentially good/clever hostnames:

• syn
• ping
• uptime
• downtime
• wintermute
• forum3000
• somad
• cube
• marvin

Some other lists:

• RFC 1178 – Choosing a name for your computer
• Hostnames! – list of hostnames and categories
• Computer Name Themes
• Top 72 Cool Server Hostnames