Glen, I'm on the droid now so it's hard to paste a link. However, go to amazon.com and keyword search "servo wire keeper" and you'll find them.

Edit: Ok, Horizon has them [link=http://www.horizonhobby.com/Products/Default.aspx?ProdID=DAJ74RED]here[/link], except they're red now.

They have some adhesive on them, but add a small drop of medium CA and they will stick permanently.