Response cards or RSVP cards make it easier for your invitees to reply back to your wedding invitation. Even a simple one line message will do, such as “RSVP
The favor of a reply is requested by ‘date’
Mr/Mrs ___________________
will attend/ will not attend “.
For more sample messages and response card etiquette, check out this excellent article
Celebration Black and White Reply Cards and Envelopes 4 x 3-Inches 25 Cards per Pack (1603)
American Crafts Wedding Response Cards
Response Card Funky Daisy Silver (50 Pack)
Wilton 50-Pack Response Cards Ivory
American Crafts Damask Flocked Response Card/Envelope 25-Pack: Black & White