this is not my idea....I stole it from Txviking on YouTube. It is quite handy and it comes from the scrap pile. Gives your left foot something to do.
It would look totally wrong...... It has no bearings at all, just a hole through the table for a 1" shaft and the bottom has a hardened dowel pin 5/16" iirc in a partially drilled hole. Had it about a year now and surprisingly it grounds great. It also can be raised to about a foot higher than the table. For when my cheater lens isn't enough.
That's a great idea, may have to steal it from you and the guy you stole it from. Been wanting to do the DIY power version like This Old Tony but it's just not in the schedule.