If you pay a fiver to the 'charadee' (Site maintainence fund, COs beer money!!) you get a full set. A tenner gets you an oak leaf clasp keep going and you get some luvverly Crosses and Orders.
Make a donation details are available on the right hand side of the Home Page of RR underneath your avatar/account stuff and activity stats (whose on/lurking etc).
Go on bung 'em a fiver, you know you want a DFC, DSO and Bar.