We discovered here some time ago that a recreation of the bouquet carried by the Queen to her coronation is made every year and presented to HM.
It all started with Baxter matching a brooch to the bouquet.
http://members.boardhost.com/coronation/msg/1357583760.html

I wonder what will happen this year and if the presentation might be accompanied by a bit of fanfare this time?

The Worshipful Company of Gardeners are responsible for this charming tradition. Link for the story last year here.