EXPEDIT parts are becoming rare these days, but if you still have a version with glass inserts, this might be just the hack for you.
1 x EXPEDIT Glass Insert
1 x 3D Printed Table Leg Connectors (or download file here)
3 x Tasmanian Oak rods (10mm)
Print the files at a Hub in your neighbourhood or on your own printer. Either PLA or ABS would do just fine, but make sure the infill is over 30%. Once printed, cut the rods to approximately the appropriate height and connect them to each other. Once done, slide the glass insert on top and presto, your side table is done.