Sample ACS email with Target

Hello,

I saw an email sample few days ago. The email was created in ACS and the images in the email were pulling from Adobe Target. The images were changed based on the email open time.

 I can't find that sample email anymore (Email getting images from Target). Does someone know where is that sample email or have any ideas/samples how to create a sample email in ACS with images coming from Adobe Target.

Thanks!