Here's a box pattern suitable for printing on thin card stock.

Print on brown substrate.

Enjoy. :D

https://www.onesixthwarriors.com/forum/attachment.php?attachmentid=63634&d=1239908741 https://www.onesixthwarriors.com/forum/attachment.php?attachmentid=63637&d=1239908752

https://www.onesixthwarriors.com/forum/attachment.php?attachmentid=63635&d=1239908741 https://www.onesixthwarriors.com/forum/attachment.php?attachmentid=63636&d=1239908741

https://www.onesixthwarriors.com/forum/attachment.php?attachmentid=63633&d=1239908684

Excellent!