some unusual postcards

interactive/cut out:

not sure if this one is one postcard or a package?

http://papercrave.com/birch-wood-postcards/

http://designvagabond.blogspot.com/2009/06/one-for-you-one-for-me-by-threefold.html

http://www.geekologie.com/2009/01/i_believe_i_can_fly_plane_mail.php

pop-up: 

http://www.artessen.com/posts/146893.html

http://www.canadiandesignresource.ca/officialgallery/souvenirs/pop-up-postcard/

http://postcardiva.blogspot.com/2010/09/novelty-postcards-add-ons-silk-velvet.html

this blog is all just about postcards! mostly old ones but still :)