“What is cardboard’s favorite sport?”/“Boxing.”

The sport of boxing doesn’t involve making boxes, but this joke became popular in 2019 and is of unknown authorship:   
 
Q: What is cardboard’s favorite sport?
A: Boxing.
 
 
Facebook
Cub Scout Pack 3072 - Lawrence, KS added a new photo to the album: Quail Run Carnival Box Maze 2019 — at Quail Run Elementary.
April 27, 2019 at 7:34 AM · Lawrence, KS ·
Cam: Dad, what is cardboard’s favorite sport?
Chris: I don’t know, what?
Cam: Boxing. 📦
 
Reddit—Dadjokes     
ItsArgon— August 28, 2019
If cardboard had a favorite sport, what would it be?
Boxing
 
X/Twitter
Dixon Schwan
@DixonSchwan
What is cardboard’s favorite sport?
——— Boxing  
XB1
1:09 PM · Aug 30, 2019
 
X/Twitter 
Vickie Roark
@seven4liberty
I have been studying cardboard lately. Do you know what cardboard’s favorite sport is?
Boxing.
10:23 AM · Jun 14, 2021
 
X/Twitter
Prince
@ImJustPrinceA
What’s cardboard’s favourite sport?
Boxing
3:50 PM · Nov 1, 2021
     
X/Twitter
Northwest Paper Box
@nwpaperbox
What is corrugated cardboard’s favorite sport?
**Boxing**
#JOTD
1:17 PM · Feb 18, 2022
   
X/Twitter
Lowe’s 1282 MST
@1282_mst
What is cardboard’s favorite sport? “Boxing” 🤣🤣🤣
@2265Lowes once again crushing #MSTcardboardchallenge early!
@SerenaGJ @Anthony_Battle1 @clattell18
10:47 AM · Apr 20, 2022
 
X/Twitter
Northwest Paper Box
@nwpaperbox
What is cardboard’s favorite sport?—Boxing
7:29 PM · Jul 8, 2022
 
X/Twitter
All Joked Up
@AllJokedUp
What is cardboard’s favorite sport?
Boxing.
12:18 AM · Jul 30, 2022
   
Reddit—Dadjokes
Left-Distribution-13—August 29, 2024
If cardboard had a favorite sport, what would it be?
Boxing
 
X/Twitter
Bob Golen
@BobGolen
Cardboard’s favorite sport is boxing
8:59 PM · Aug 29, 2024