Although they seem more marketed to the "ricer" crowd of cars these days, Autozone/Advance/O'Reilly, etc. etc. carry anodized aluminum 'covers' that slip in place over your old ones and tighten down (for manual or autos). They have holes punch-pressed into them that give excellent grip. Probably the same ones that JDK saw on eBay.
If you search on Autozone's website you can find them.