I built this castle for a gal who is leaving the company to go teach. In a past conversation Mary had wished she had cube walls around her desk but the powers that be wouldn't give her any. On her last day, today, I made her a portable cube shaped like a castle. It was part of the conversation. Here's Mary with her castle cube.
Here's a shot with out the Shield of Knowledge.
The whole thing is cardboard, duct tape, paint and hot melt glue. It took a couple of hours to build. It's completely portable and folds up for easy travel or storage.