Some were sent away for being too profane, others for making snide comments at inopportune times.
Now the greeting cards that never made it to the stores hang solemnly on a wall at Hallmark Cards in Kansas City.
Hallmark introduced its Shoebox line of irreverent cards 20 years ago this spring and says it has sold more than two billion since.
But rejects outnumber winners about ten to one.
For example, there's a questionable get-well card with a big happy face on the front.
On the inside, it reads, "Hi! Welcome back from your coma!"
Editors say the lines on what is appropriate are continually redrawn.
Off-color language and politics are avoided.
A company spokeswoman says "Almost everything is offensive to someone."