I found a $32 silicon case, https://www.amazon.com/BestforYou-T..._1_9?keywords=kann+cube&qid=1576195677&sr=8-9, that was sent over to me from China. This softens the sharp corners and makes the Kann Cube easy to hold and travel-worthy for me. I'm on an airplane listening to it now.
How are you liking the case? Does it affect the Bluetooth connection? And what in the world are all the hi-res stickers for?