It creates randomised pairings from the given inputs.
Simple:
╭─{ yaauie@durin:~ }
╰─● rando-pair Alice Bob Charlie Donald Evelyn Frank Gertrude
Donald + Charlie
Alice + Evelyn
Bob + Frank
Gertrude
[success]
If your first-names aren't unique, simply quote or escape the names that have whitespace:
╭─{ yaauie@durin:~ }
╰─● rando-pair Alice "Bob A" "Bob B" Charlie Donald Evelyn Frank Gertrude
Alice + Bob A
Evelyn + Frank
Bob B + Charlie
Gertrude + Donald
[success]
╭─{ yaauie@durin:~ }
╰─● rando-pair Alice Bob\ A Bob\ B Charlie Donald Evelyn Frank Gertrude
Evelyn + Frank
Donald + Charlie
Bob B + Alice
Bob A + Gertrude
[success]