What I can make out of my old table and chairs?

Some people use chair backs on wall to use like a towell bar. Some put chazirs together to make a bench, with or without backs. Some take off backs, then cut off back legs a a little of the seat, and attach to wall for a side table, leave front legs on. Others have put them side by side, like the side table, put a board across top, and made a desk. You can cut off legs of ones in middle. They stain top or paint or add tile to board. Try utube for repurposing chairs. Some hang the whole chair as a shelf and hang rods. Some use the back and add screw hooks to hold hats, purses, scarves,etc. .

It would make a excellent craft or game table if you have the space to set it up.

I have repurposed chairs into planters and the backs can be hung on a wall, then use large "s" hooks to hang things on - I have used one for my winter scarfs.

If you click on "explore projects" then "upcycle" then "furniture" then "tables or chairs" you will find numerous ideas for your needs, Lucie. I sincerely hope this helps. I picked out one for but there are many more great ideas: https://www.hometalk.com/diy/paint/furniture/four-chairs-become-the-perfect-bench-28316062

Four Chairs Become the Perfect Bench

Here's a beautiful bench idea: http://craftszen.com/repurposed-chairs-will-widen-eyes-terms-usefulness-style/repurposed-chairs-1/

Make a pot rack out of the chair backs, using the table legs as the outside support.