The wedding invitation set for our wedding. Designed and made by my wife and I using our home printer, and a rented laser cutter/engraver.
Our wedding was in the woods, and we hoped the pop-up trees would give our prospective guests a taste of event they would be attending. The RSVP card was perforated, which let the guest remove the response card and keep a handy map of the surrounding area.
An accordion-style field-guide was also included, with illustrations done by my wife of local plants and animals.