Aircraft nicknames can be a tricky thing. They were never official, so there is no master list of what name goes to which aircraft. We have some records, personal recollections, photos, and a few "unofficial" lists.
For some names we know which aircraft they were associated with, but have no photo of that particular nose art to confirm. Yet with others we have a photo, but no idea by serial number of which aircraft is actually pictured.
Maybe you can help?
Photo, but no positive ID:

Duckie: One of the early G-1 models, note the lack of cheek guns. No known serial number or squadron. Photo dated 3/31/44.
We believe that "Myrt's Avenger" has a chin turret, and a cheek gun kit modification made either at a modification center, or in the field.
Seldom Fooks. A B-17G.
No photo known (this may seem like a long list, but it's out of 347 group aircraft):
Avenger: B-17G 42-37760 (VE-F), Douglas. Transferred to 487th BG on 4/6/44.
Avengress II: B-17G 42-102966 (GD-F), Boeing. Returned to the US 6/9/45.
Baby Dumpling: B-17F 42-30676 (VE-E), Boeing. Lost 1/5/44, aka Danny Dumpling (no photo either).
Bar Fly: B-17G 42-40008 (VE-E), Lockheed Vega. Lost 3/24/44.
Betty Lou: B-17G 42-37962 (VE-L). Lost 1/11/44.
Bobby-T: B-17F 42-30722 (GD-G), Boeing. Lost 10/8/43.
Buck-Eye: B-17G 43-39025 (MS-W), Boeing. Returned to the US 6/10/45. We have photo of tail, but not nose art.
Bucket O' Bolts: B-17G 42-39798 (MS-L), Lockheed Vega - Transferred to 487th BG on 7/17/44.
Carol Leigh: B-17G 42-102656 (GD-L), Boeing. Transferred to 92nd BG on 5/10/45.
Carolina Queen: B-17G 42-97214 (GD-B), Boeing. Lost 5/24/44. We have photos of aircraft, but not the nose art.
Choo-Z-Suzy: B-17G 44-6814 (VP), Douglas. Returned to the US 5/28/45.
Connie: B-17G 42-38188 (VP-K), Douglas. Lost 5/30/44.
Crack-A-Dawn: B-17G 43-38998 (MS-S/I), Boeing, Returned to the US 6/11/45.
Daisy Mae: B-17G 43-38550 (VE-A), Boeing. Returned to the US 6/14/45.
Dinah Might II: B-17F 42-3514 (VP-V), Douglas. Lost 1/11/44, aka Doll Baby (no photo either).
Dry Gulcher: B-17G 42-32088 (VE-M), Boeing. Lost 5/19/44.
Dry Gulcher: B-17G 42-97594 (VE-B), Lockheed Vega. Salvaged 8/4/44.
Dusty Gay: B-17G 44-8827 (GD-B), Lockheed Vega. Transferred to 306th BG on 5/23/45.
Evelyn Ann: B-17G 44-8779 (VE-S), Lockheed Vega. Transferred to 306th BG on 5/23/45.
Forget Me Not: B-17F 42-29950 (MS-N), Boeing. Lost 8/12/43. Photo, but not of nose art.
Gremlin's De Lite: B-17F 42-29755 (VP-Y), Boeing. Returned to the US 6/18/44, aka The Last Straw!! (there is a photo of this art work).
Half Breed: B-17G 42-31448 (VE-A), Boeing. Lost 3/6/44.
Hanger Queen: B-17F 42-5747 (MS-O), Lockheed Vega - Transferred to 384th BG on 10/5/43.
Hitler's Hoe Doe: B-17G 43-38898 (GD-G), Boeing. Lost 2/3/45, aka Blind Date (no photo either).
Homing Pigeon: B-17G 42-97474 (VP-Z), Lockheed Vega - Lost 2/22/44, photo of wreck, no known photo of nose.
Hot Toddy: B-17F 42-30852 (MS-Y/V), Boeing. Lost 11/5/43, aka Blowin' Bessie on Dec 5, 1943 (no photo either).
Iris: B-17F 42-29983 (VP-X), Boeing. Lost 8/17/43, aka Uncle Sammy (photo of this nose art).
Iron Gut Gert: B-17F 42-30016 (VE-M), Boeing. Lost 6/22/43.
Janice: B-17F 42-30004 (GD-B), Boeing. Transferred to 305th BG on 8/22/43.
Jaynee B: B-17G 42-31381 (MS-O), Boeing. Lost 3/20/44.
Lethal Lady: B-17F 42-30013 (VE-R/E), Boeing. Lost 7/24/43.
Little Joe: B-17G 43-39174 (VP), Boeing. Returned to the US 6/21/45.
Little Lulu: B-17G 43-39172 (VE-K), Boeing. Returned to the US 5/28/45.
Lon Boy: B-17G 44-8868 (VE-V), Lockheed Vega. Returned to US 5/23/45.
Lucifer II: B-17F 42-29867 (MS-U), Boeing. Transferred to 384th BG on 10/4/43.
Lucky Lady: B-17F 42-30025 (GD), Boeing. Aircraft was assigned stateside but never ferried to the UK with the group. Instead remained in the ZOI.
Male Call: B-17G 42-97471 (VE-N), Lockheed Vega. Salvaged 3/20/44.
Marsha Sue: B-17G 42-97059 (VP-S), Boeing. Salvaged 12/12/44.
Me and My Gal: B-17G 42-40017 (MS-W), Lockheed Vega. Salvaged 2/14/45. Known by this name in March 1944 as documented in the 381st microfilm. aka Miasses Dragon and Assend (we have photos of both these names).
Messy Bessie: B-17F 42-3268 (GD-H), Douglas. Transferred to 96th BG on 6/18/44.
Miss Fortune: B-17G 43-39012 (VE-J), Boeing. Lost 3/9/45.
Mission Belle: B-17G 42-31097 (MS), Boeing. Lost 12/1/43.
Myer's Flaw: B-17G 42-31553 (GD-B), Boeing. Lost 3/6/44.
Nip & Tuck: B-17F 42-29765 (VP-R), Boeing. Lost 10/8/43.
Old Irongut: B-17G 43-37612 (VE), Boeing. Lost 6/20/44.
Our Bridget: B-17G 44-6975 (MS-K), Douglas. Returned to the US 5/20/45.
Peacemaker: B-17G 44-6625 (GD-N), Douglas. Returned to the US on 6/9/45.
Princess Pat: B-17G 42-97503 (VP-X), Lockheed Vega - Salvaged 3/25/45. Photo, but not of nose art.
The Railroader: B-17G 42-97357 (VP-Z), Boeing. Salvaged 1/13/45. Photo, but not of nose art.
Red Hot Riding Hood: B-17F 42-3223 (VP-H/R), Douglas - Lost 7/14/43. Photo, but not of nose art.
Rum Boogie: B-17F 42-29735 (VE), Boeing. Lost 8/17/43, aka Our Mom (no photo either).
Sad Sack: B-17F 42-29976 (VE-Q), Boeing. Lost 7/25/43. Photo but not of nose art.
Second Year: B-17G 43-37737 (VP), Boeing. Salvaged 6/24/44.
She Has To: B-17G 42-102512 (GD), Boeing. Returned to the US 6/21/45.
Shoo Shoo Baby: B-17G 44-83624 (VE-F), Douglas. Returned to the US - Note: this was the last aircraft assigned to the 381st.
Sis: B-17F 42-2978 (MS-V), Douglas. Returned to US 5/1/44.
Smashing Thru: B-17G 44-6148 (GD-M), Douglas. Lost 7/13/44.
So What?: B-17G 44-6025 (VE-I/P), Douglas. Lost 5/30/44.
Spare Parts: B-17F 42-30151 (VE-J), Boeing. Lost 3/4/44. Photo, but not of nose art.
Sweat' er Girl: B-17G 43-37549 (GD), Boeing. Returned to the US 6/11/45.
Sweet Eloise: B-17F 42-30020 (VE-N), Boeing. Salvaged 6/10/43. Photo, but only shows the "loise."
Touch the Button Nell: B-17G 42-40025 (MS-X), Lockheed Vega - Salvaged 2/6/44.
Unavailable Mabel: B-17G 42-97397 (GD), Boeing. Returned to the US 6/10/45.
We Promised: B-17G 42-102578 (VE), Boeing. Returned to the US 6/10/45.
Whaletail: B-17F 42-3221 (JZ-E), Douglas. Salvaged 7/29/43. Photo, but only shows "Whalet."
Whaletail II: B-17F 42-5845 (GD-A), Lockheed Vega. Lost 12/20/43. Photo, but not of nose art.
Widget: B-17F 42-30011 (MS-R), Boeing. Lost 7/14/43. Photo, but not of nose art.
Wild Bill: B-17G 43-37538 (MS-Z), Boeing. Returned to the US on 6/10/45.