If by "self tie" you mean one you tie yourself, as opposed to one that is pre-tied, then you might want to check out Eade and Ravenscroft (find 'em on Google). As far as I know they only do black or white ties-- as these are "made to measure" you will have to give them your collar size (as well as your credit card details) and they will post if off airmail the same day. I find I usually receive my ties in 5-10 days.