Cardboard Computer have mailed multiple postcards to Patreon patrons who have pledged support at the $5/month tier or higher. The postcards that have been sent to date are listed below.

October 2018 [ edit ]

The postcard pictured on the Here And There Along The Echo website, featuring the Bureau of Secret Tourism's phone number.

First postcard, front

First postcard, back

December 2018 [ edit ]

A postcard featuring the earthwork path. This image was also posted to Cardboard Computer's Instagram on September 5, 2018.