Ones with cool jobs?

• Hockey players
• Old-time vendors
• Guys bringing cold blocks, once
• Vestigial vendors
• Hired killers, in slang
• Hockey-rink workers
• Bygone deliverers
• Pre-refrigerator visitors
• Delivery people whose jobs were obviated by refrigeration

Wiktionary Word definitions in Wiktionary
n. (plural of iceman English)