Here's one I got recently (word for word, except for proper names removed):
"Dear Khardbored,
Thank you for your interest in the 3rd shift widget maker opportunity.
We are pleased to have had the opportunity to become familiar with your background and credentials.
At this time, we have decided to pursue other candidates for the role. We encourage you to continue your search for new or different opportunities across Frank's Manufacturing Co. that may interest you.
Thank you again for your willingness to explore this potential opportunity, and we wish you much success in your future career path.
Best regards,
HR Department
"
Let's go with . . .
"
"Dear Frank's Manufacturing Company,
Thank you for your interest in interviewing me for the 3rd shift widget maker opportunity.
I am pleased to have had the opportunity to become familiar with your company and this position.
At this time, I have decided to pursue other employers for my role. I encourage you to continue your search for a new employee that may interest you.
Thank you again for your willingness to explore my potential opportunity, and I wish you much success in your future hiring path.
Best regards,
Khardbored
"