I NEED A 16 INCH CORK TURNTABLE MAT

You could repurpose this 14" cork mat.
CobraCo Cork Doormat | Wayfair

This vendor might do a custom job.
Cork Turntable Mat | Cork Oak | HANDMADE | eBay

@noromance , a whirl’d of possibilities....

Miserable pun...and the Wayfair mat would make VTA a ’perhaps’ challenge....

"I don't think I've ever seen a tonearm play 'uphill' like that....." 😟

Get a 12" cork mat and a handful of 2" cork circles of the same thickness to surround the outer perimeter of the mat.  

@asvjerry , cork is very stiff. I do not think the repositionable spray is necessary. Cork is also very porous. It is possible that slower drying cements might bleed through and trapped air will bleed right through with gentle pressure. I would use a veneer roller. 

@mijostyn ...*L*...and I think we’re wandering rather deep into the weeds over a project that isn’t ours.... ;)

Personally, I’ve been ’blue skying’ with this little thang, just released from PE/Dayton....

Hmmmmm....

Basically meant for ’sound bars’ and the like, I’m intrigued....

I’ve always been drawn to small objects that whisper ’potentials’....;)

(...just ’bent’ that way....*L* )