Possible Clues:

• Snail mail, e.g
• New word for something old
• “Film camera” or “silent movie,” e.g
• 'Rotary phone,' for one
• 'Acoustic guitar' or 'terrestrial radio'
• 'Cloth diaper' or 'film camera'
• 'Landline' or 'raw milk,' e.g.
• 'Acoustic guitar' or 'push lawn mower,' e.g.