So many imps, so very many.

GC Imps - Keepers:
All Night Long
Antikythera Mechanism (travel imp)*
Bastet
Bensiabel
The Chicken-Legged Hut
Chimera (travel imp)*
The Deep Ones
Eclipse
Elf
Half-Elf
Haunted (2)
Jack
Jezebel orange blossom honey & okay-ish rose on hair. Will trying it on skin produce bad!rose sorrow? ETA: No! Is also okay on skin.
Miskatonic University
No. 93 Engine (2)
Obatala*
Paris
Red Rider (2)
Redoul Honey*
Skuld
Smokestack
Tamora
Tenochtitlan
Tezcatlipoca
Titus Andronicus

GC Imps - To Test
Anathema (tested - honeysuckle & vetiver take a while to play nice together)
Centzon Totochtin
Chokecherry Honey
Daphne Honey
Dragon's Milk (sweet & cloying, must re-test)
Grog
Harlot
Hedylogos - alas, Hedylogos is the bad rose
Scarecrow
Snake Oil (re-test after aging)

LE Imps - Keepers:
Mars Ultor
Two Old Men*
The Avenue*
Beanman and Beanwoman*
The Gift*
Hidden Pearls*
Priala the Human Phoenix
Saw-Scaled Viper
Boomslang (must test on wife)
Australian Copperhead
Western Diamondback
Death Adder (maybe will improve with age?)

LE Imps - Not keepers
Impressions of the Floating World
Faiza the Lady of Serpents
Behemoth

GC Imps - Not Keepers
Alice^ (gone)
Al-Shairan^
Beer from the Marsh Woman's Brewery
Bewitched
Black Rider^ (aged)
Blood Rose
Bon Vivant
Brown Jenkins^
Calico Jack^
Cheshire Cat
The Coiled Serpent
A Countenance Forboding Evil
Dana O'Shee^ (gone)
Death Cap^
Deep in Earth^
Defututa
Destroying Angel (aged)
Dragon's Heart^ (aged) (gone)
Dragon's Musk (aged)
Embalming Fluid (aged) (gone)
Endymion
Evil
Fire for thy Stepmother's Daughters^
Gaueko
The Ghost
Gomorrah
Hedylogos^
Kali
Laudanum
Mary Shelley (gone)
Masquerade
Mata Hari (2)
Neutral (2)
The Night-Raven
Nyx
Queen Alice
Queen Gertrude
The Raven
Satyr
Sherlock Holmes (gone)
Sin
Squirting Cucumber
Somnus
Sybaris (gone)
Vial of Holy Water (aged) (gone)
Wicked (aged)

*Also have bottle
^Tested/Used