This is a genius idea. A chair/ bench that can transform into a table, or both! This would be excellent to use in a smaller space where having multipurpose furniture is key to a functioning space. Or an outdoor space.
As a kid growing up in Southern California I left at least a few old skate decks in my wake and this killer Recycled Skateboard Shelf from Esty seller Skate Mood would have been a great way to hang on to them and organize the rest of my stuff.