In our garden we have a corner plant space.  This built in plant box has convenient corners which are perfect for sitting on.....but alas there was nowhere to put your drink whilst sitting in the sun.  So off I trotted to B&Q, picked up some banister wood and some decking.  Cut the banister wood in half and took off the annoying sloped ends, sanded them down and nailed them onto my decking.....bazinga - table!

After discovering how to make chalkboard paint, I couldn't help myself make more things with it!  I decided "personalisable dining set".
I got myself some thin-ish wood and traced some existing coasters and placemats.  After cutting out the shapes, I made my chalkboard paint (see here on how to make it) and painted and slated each board.  I made a set of six, with coaster and placemat matching.
You can write guests names on the coaster/placemat - no excuse for some one else drinking your drink....or you drinking someone else's drink.  You could also create different themes for dinner by adding a chalk design on each mat....although I can foresee insults being sent across the table via placemat.