Fake Sham:

I confess, I did not think this joke up. I'm just stealing it and running with it:

• Shampoo: Fake poo
  
• Champagne: Fake pain
  
• Champ: Fake p
  
• Shaman: Not the real article
  
• Shambles: Not the truebles
  
• Chammois: Not really me
  
• Shamash: Fake ash, but who cares?
  
• Shamrock: Much lighter than the real thing
  
• Chambre noir: Be a fake French painting.
  
• Chamomile fake'o'mile
  
• Shambling: Cubic Zirconia.