Cross Stitcher magazine Making Spot blog has this roundup of Diamond Jubilee designs.
From top left, to bottom right:
Embroidery pattern, Bustle & Sew
Crown hoop design, What Delilah Did
Diamond Jubilee sampler, Nia Cross Stitch
Crown sachet, CrossStitcher 250
Celebration cupcakes, Bothy Threads
Emma Bridgewater, CrossStitcher 250
Crown in frame, Diane Machin
Stamp design, Jacqui Pearce
Corgi Union Jack, Miso Funky
As I suspected, there are more and more designs available as the Jubilee celebrations get closer.