Weekend Project: Build a cardboard castle Mr. McGroovy's Box Rivets (I know - don't you love it?) has a step by step tutorial on how to convert refrigerator boxes into a kickass cardboard castle.

Create an Eco-Friendly 2-Story Cardboard Pet House! In this tutorial, discover how to craft an amazing 2-floor pet house using sustainable materials - perfect for your dog or cat! Dive into our easy, ...

If you have kids, you've probably encountered this before. Get them a new toy and what they love is the box! A group decided they'd just start with the boxes and make something to inspire creativity.