chuck box design by lupinsea found at the Expedition Portal. Looks like a lightweight, compact and functional idea (there’s a video below showing how it is set up. I could not find any plans for this box)
KENCHIKUKAGU MOBILE FURNITURE - The Kenchikukagu is a series mobile furniture. Designed by Atelier OPA from Japan. The Kenchikukagu series included a mobile work station, a mobile bed and a mobile kitchen.
Small House Folding Interior - Japanese designers Atelier OPA created a unique set of products, which are perfect for small spaces. Includes a mobile home office, a small kitchen, and a guest room (pictured). When not in use, fold your furniture away.