Recently I've started up a spare time upcycling hobby - making shelves out of knackered old suitcases.
While down in Florida clearing junk out of an old house I came across some cool looking old luggage: Moth eaten, corroded, not really suitable for travel any more. However, inspired by a post on Pinterest I had a go at converting them into shelves. I'm on my fifth set now, keeping one, selling the rest on my new Etsy 'shop'.
The process is pretty easy, after a bit of hit and miss refinement: Cut in half, wood glue down anything that's flapping, reinforce with timber (bracing across the join between lid and base), coat in shellac and attach hooks. This pic shows the back/inside: