1 Transformers Soundwave Costume 1. Transformers Soundwave Costume: First off, I need to thank my wife for being patient with me as I transformed our apartment into an utter mess of cardboard pieces, stinking it up wit… (via Instructables) 2 Collapsible Playhouse 2. Collapsible Playhouse: This DIY cardboard playhouse was created especially with small spaces… Continue reading 35 Things You Can Make With a Cardboard Box That Will Amaze Your Kids