Gonna go out on a limb and say E-bay

Harp alone
http://cgi.ebay.com/Sterling-Silver-...QQcmdZViewItem

Harp on sword
http://cgi.ebay.com/SCOTTISH-ITEMS-I...QQcmdZViewItem

As a brooch
http://cgi.ebay.com/SCOTTISH-ITEM-BA...QQcmdZViewItem

Adam