The thumbnail versions below.
Sir Robin's shield exists somewhere, but I think this is a much cleaner version of it.
For the Bulls with the green collars...
...and the red. Thanks for those oval shield templates! The full size versions are there if you click on the thumbnails on the brickshelf link. Note that the bull's heads are slight different - the red shield has red eyes and a little bit of rendering. Swap them as you see fit.