Yes ,I have 2 of them ,most are homemade Amish, the table top acts as the back of the chair and is pegged. The seat is hinged and lifts up for storage. When table is needed ,pull the pegs and drop table top to the side hangers and peg.
Yes there is some beach furniture or garden summer furniture have chairs that convert to a small table for picnics at the beach, or you can use the the furniture in your garden which easily folds. Small stools that convert to a table.
Yes, sure there is! You can call it minimilistic furniture. It is nothing extraordinary, just a simple plank of wood folded at equal intervals to make a square. All you need to do is use the wodden top and store you cushions in the empty space at the center!