Join Date: Dec 2011
Location: Morris County, New Joisey
Personally, I'd use a long strip of double sided tape (the thin type, not the foam) to hold the ebony to your pre-tapered "carrier" board. I'd use featherboards before & after the blade, & use a good push block, i.e., Grr-Ripper, to keep the whole thing snug against the fence while I made the cut on the ebony.
When I've used the double sided tape for similar processes, a good squeeze with clamps, vise, or whatever, can help ensure good contact between the tape & workpieces.
If the tape proves to be too grippy when you try & separate the pieces later, a heat gun would probably help, then some solvent to remove any residue.
Just my $.02. Good luck!