Halloween has goblins; Thanksgiving has gobblers. “After Halloween there’s Thanksgiving! From goblins to gobblers!” was in a “Josephine” comic strip printed in many newspapers on October 21, 1954.
 
A riddle was posted on Twitter by gretchen smith on November 12, 2009:
 
Q: What do Thanksgiving and Halloween have in common?
A: One has gobblers, the other goblins.
 
“What do the holidays Halloween and Thanksgiving have in common? They’re both for goblins!” was posted on Twitter by Rob 🐅 Williams on October 24, 2016. “What does Thanksgiving have in common with Halloween? GOBBLE-INS” was posted on Twitter by Magikid Robotics Lab on October 24, 2017.
 
           
Newspapers.com
21 October 1954, Austin (TX) Statesman, “Josephine” comic strip, pg. A-14, col. 2:
“After Halloween there’s Thanksgiving! From goblins to gobblers!”

Google Groups: alt.humor.puns
Halloween—> Thanksgiving
Buffalo Chilkat
11/10/99
Goblins have morphed into—> gobblers
Spooks have turned onto—> spoons
Ghosts have become—> roasts
Ghouls into—> pools (of gravy)
Pumpkins into—> pie.
Costumes—> dressing
Life—> logical!
 
Twitter
gretchen smith
@gretchen_smith
What do Thanksgiving and Halloween have in common? One has gobblers, the other goblins.
3:45 AM · Nov 12, 2009·Twitter Web Client
 
Twitter
Kia Of Cheyenne
@kiaofcheyenne
Q: What do Thanksgiving and Halloween have in common? A: One has gobblers, the other goblins.  http://kiaofcheyenne.com
1:59 PM · Oct 24, 2012·SocialOomph
 
Twitter
Rob 🐅 Williams
@orangejack
What do the holidays Halloween and Thanksgiving have in common? They’re both for goblins! 👻 #FB
5:00 PM · Oct 24, 2016·IFTTT
 
Twitter
🇵🇭 vince 🇵🇭
@_vincyy
if we combined halloween and thanksgiving we’d get gobble-ins
7:57 PM · Nov 23, 2016·Twitter for Android
 
Twitter
Magikid Robotics Lab
@MagikidRobotics
What does Thanksgiving have in common with Halloween? GOBBLE-INS. Join the fun, and sign-up for… https://instagram.com/p/BapxHvwn0bs/
9:30 PM · Oct 24, 2017 from Los Angeles, CA·Instagram
   
Twitter
Rachel M. Cohen
@rachelzuela
What do Halloween and Thanksgiving have in common? Gobble ins!
2:41 PM · Oct 28, 2017·Twitter for iPhone
   
Twitter
Jean-Paul Peron
@4x4RE
Q: What do Thanksgiving and Halloween have in common?
A: One has gobblers, the other goblins.
4:30 PM · Oct 29, 2017·Hootsuite
 
Facebook
UNO VASA
November 8, 2019 at 10:57 AM ·
What does Thanksgiving have in common with Halloween? They have “Gobble-ins”!!
 
Good Housekeeping
20 Corny But Hilarious Thanksgiving Jokes to Tell This Year
BY AMINA LAKE ABDELRAHMAN, GOOD HOUSEKEEPING INSTITUTE
Nov 26, 2019
(...)
What does Thanksgiving have in common with Halloween?
Gobble-ins!