Findings:

• Apollo Command Modules
• weirding module
• perl chatterbox client module
• Command Module
• Moog Modules
• Oberheim Synthesizer Expander Module
• Apache module
• voltage regulator module
• Service Module
• The everything apache module
• Network Module
• Pluggable Authentication Module
• Learn to Program: Libraries and Modules
• Versa Module Eurocard
• powertrain control module
• flat module
• memory module
• Apollo Lunar Module
• expansion module
• keychain
• processor keychains
• keychain linker
• USB flash drive
• Module
• Girls' keychains
• God module
• Perl module
• Alesis DM5 Electronic Percussion Module
• On the Criteria To Be Used in Decomposing Systems into Modules

If you Log in you could create a "keychain modules" node. If you don't already have an account, you can register here.