Wiimeiser 
(Foil Hat)
Sorted by medium:
Babs Seed- Babs Seeley (or Babs Sederwall)
Luster Dawn- Dawn Lester
Spur- Spira Finau (Finau is French, I think, so given that and her accent she's probably from Louisiana. Also, she's probably from a bayou. It's also one letter off "final", and she's basically the last character to be introduced outside the epilogue.)
Biscuit- Biscotti Finau (Yes, that's the best I could come up with)
Bloofy- Bloofy (except he's a chihuahua or something like that)
Gilded Lily- Lily Gold
Loop-de-loop (filly from Fosgitt's debut comic)- Might as well go with "Lulu Delong" for now.
Thestra- Theo Strange
Lilymoon- Lily Moon
Ambermoon- Amber Moon
Littlepip- Pippi Little
Velvet Remedy- Velma Remington
Calamity- Calvin "Cal" Amity (formerly Autumn, but he changed it to distance himself from his brother Leif)
Autumn Leaf- Leif Autumn
Silver Bell- Silva Bell
Poppyseed- Poppy Sederwall (yeah, real original)
Blackjack- Jackie Black
Morning Glory- Gloria Mornington
Scotch Tape- Scottie Tapia
Hired Gun/Silver Storm- Sylvia Gunn
Serenity- First name is still Serenity, and I can't think of a last name.
Sassy Lost- Sally Long
Rainy Days- Rayna Day
Puppysmiles- Poppy S. Day
Threnody- ...Gonna to go with "Thora Nedir" for her for now
Icepick- Iris Peck
I still have the full list from the main Crazy Headcanons thread, should I cross-post even though most of the names aren't mine?
Babs Seed- Babs Seeley (or Babs Sederwall)
Luster Dawn- Dawn Lester
Spur- Spira Finau (Finau is French, I think, so given that and her accent she's probably from Louisiana. Also, she's probably from a bayou. It's also one letter off "final", and she's basically the last character to be introduced outside the epilogue.)
Biscuit- Biscotti Finau (Yes, that's the best I could come up with)
Bloofy- Bloofy (except he's a chihuahua or something like that)
Gilded Lily- Lily Gold
Loop-de-loop (filly from Fosgitt's debut comic)- Might as well go with "Lulu Delong" for now.
Thestra- Theo Strange
Lilymoon- Lily Moon
Ambermoon- Amber Moon
Littlepip- Pippi Little
Velvet Remedy- Velma Remington
Calamity- Calvin "Cal" Amity (formerly Autumn, but he changed it to distance himself from his brother Leif)
Autumn Leaf- Leif Autumn
Silver Bell- Silva Bell
Poppyseed- Poppy Sederwall (yeah, real original)
Blackjack- Jackie Black
Morning Glory- Gloria Mornington
Scotch Tape- Scottie Tapia
Hired Gun/Silver Storm- Sylvia Gunn
Serenity- First name is still Serenity, and I can't think of a last name.
Sassy Lost- Sally Long
Rainy Days- Rayna Day
Puppysmiles- Poppy S. Day
Threnody- ...Gonna to go with "Thora Nedir" for her for now
Icepick- Iris Peck
I still have the full list from the main Crazy Headcanons thread, should I cross-post even though most of the names aren't mine?