Print the ball and connectors at 100% infill with the ball using the bounciest filament you have. You might have to sand the connectors to get them to fit. Print 2 connectors, 2 paddles, and 2 halves of the table. Pretty much just put the net in between the two halves of the table, put the connectors through it, and add the halves to the sides. It can be played on but is more for looks.

BTW the table in the picture was slightly offset if you could tell. I fixed that.