“My child is an honor(s) student at ____ school” is a bumper sticker that many schools have handed out. “My Child Is An HONOR STUDENT In The Durant Public Schools” (in Druant, OK) was cited in print in 1987.
 
The humorous responses of bumper stickers include “My kid beat up your honor student,” “My kid got your honor student pregnant” and “Your child may be an honor student, but you’re still an idiot.”  “My kid is an honor student & my president is an idiot” was a bumper sticker in the 2000s, during the presidency of George W. Bush.
   
 
Google News Archive
8 April 1987, Durant (OK) Daily Democrat, “Keeping in Step” by Bob Peterson, pg. 2, col. 5:
Bumper sticker that’s a prizewinner in our books: My Child Is An HONOR STUDENT In The Durant Public Schools.
 
Google Books
Esteem Builders:
A Self-Esteem Curriculum for Improving Student Achievement, Behavior & School-Home Climate
By Michele Borba and Binah Taylor-McMillan
Rolling Hills Estates, CA: Jalmar Press
1989
Pg. 395:
Have a large quantity printed up with a message such as: “My kid was Student of the Week at School,” “My child is on the honor roll at School,” “My kid was caught being good at School.”
 
21 May 1989, Dallas (TX) Morning News, “Hate lists? Sorry, I’m tapped out” by John Anders:
Other minor irritants are these bumper stickers that proud parents sport on their cars: “My Child is an Honor Student at Jenkins Elementary.”
 
23 May 1989, Newsday (Long Island, NY), ‘The Island Under Glass: Not Just Another Bumper in the Crowd” by Fred Bruning, pt. 2, pg. 2:
“My Kid’s an Honor Student,” the sticker proclaimed—just the sort of guileless enthusiasm that may prompt others to grouse, “Oh yeah, so what?” Your kid’s an honor student, my kid once took out the garbage. Your kid bats cleanup for the Little League all-stars, my kid listens to Simon and Garfunkel. Your kid knows the capital of Wyoming, mine wears suspenders.
(...)
That perfect stranger one car behind cannot be expected to screech up to the nearest phone and call home to say, “Hey, guess what, Gray ‘84 Subaru’s kid is an honor student!”
 
Google News Archive
13 December 1989, Sun-Journal (Lewiston, ME),  “SAD 44 directors look at options for overcrowding” by Barbara Adams, pg. 13, col. 6:
Margaret Hand of Woodstock, a member of the school board, commended “whomever is responsible” for the Telstar Middle School bumper sticker which reads: My child is an honor student at Telstar Middle School.
 
13 May 1992, Syracuse (NY) Herald-Journal, “The Bumper as a Personal Billboard” by Linda Shrieves (Orlando Sentinel), pg. T11, col. 5:
The proud parent school, ranging from simply naming the child’s college to the current rage, “My Child is an Honor Student at…”
 
Which, of course, provides the straight line for the comedy school, which has fired back: “My Kid Beat Up Your Honor Student.”
—Linda Shrieves
 
Google Books
Quality Management for Educational Technology Services:
A guide to application of the Deming management method for district, university, and regional media & technology centers
By Mark L. Richie
Washington, DC: Association for Educational Communications and Technology
1994
Pg. 69:
The Effect of Ranking People (The Bumper Sticker Effect)
I HAVE AN HONOR STUDENT AT XYZ MIDDLE SCHOOL
MY KID JUST BEAT UP YOUR HONOR STUDENT!
 
Google Books
Bodies in Technology
By Don Ihde
Minneapolis, MN: University of Minnesota Press
2001
Pg. 19:
The bumper stickers that proclaim “My child is an honors student at ____ School” are countered by “My child beat up your honors student” on other bumper stickers.
     
U.S. News and World Report
Study: Aggressive Drivers Tend to Have Bumper Stickers
Posted: Jun 19, 2008 11:38 a.m.   
(...)
According to CSU researchers, a Prius with a “My Child is an Honors Student” sticker on the bumper is about as likely to cut you off as an Expedition with a “My Kid Beat Up Your Honors Student” sticker.
 
Democratic Underground
white_wolf
Wed Oct-19-11 11:01 PM
“My kid beat up your honor student.”
Am I the only one gets pissed off when I see these bumper stickers? I saw one today and it just pissed me off. Maybe, I’m overreacting, but I don’t think joking or being proud of kids for bullying is a good thing. Granted, I could understand how people get annoyed with those “My child is an honor student” bumper stickers, but I think these are much worse. Whenever I see these bumper stickers I always think the should read something like “My kid is an immature bully with self-esteem issues and emotional problems, that I am failing to address as a parent.” I really don’t think we should be even jokingly encouraging bullying. Once again, I may be overreacting and I am hardly unbiased since I got picked on some growing up.