OK, I got all the HP patterns that I could find, and I'm putting them here in a zip file. Jill, I don't think all the ones you wanted were there, but hopefully this is a start.
To anyone that uses these patterns:
PLEASE CREDIT LITTLEMOJO! I cannot stress this enough. She did us all a favour by creating such awesome patterns, and even though she is gone we have a duty to ensure that she is remembered for her works.
Inside this zip are the following patterns:
Golden Snitch by: little mojo
Broom by: little mojo
Slytherin Crest (v6) by: little mojo
Slytherin Crest (v5) by: little mojo
Slytherin Crest (v4) by: little mojo
Slytherin Crest (v3) by: little mojo
Ravenclaw Crest (v5) by: little mojo
Ravenclaw Crest (v4) by: little mojo
Ravenclaw Crest (v3) by: little mojo
Hufflepuff Crest (v5) by: little mojo
Hufflepuff Crest (v4) by: little mojo
Hufflepuff Crest (v3) by: little mojo
Hogwarts Crest (v3) by: little mojo
Hogwarts Crest (v2) by: little mojo
Gryffindor Crest (v6) by: little mojo
Gryffindor Crest (v5) by: little mojo
Gryffindor Crest (v4) by: little mojo
Pensieve by: little mojo
Marauder's Map by: little mojo
Goblet of Fire by: little mojo
Sorting Hat by: little mojo
Ron Weasley (v2) by: little mojo
Ron Weasley by: little mojo
Lee Jordan by: little mojo
Harry Potter (v2) by: little mojo
Harry Potter by: little mojo
Draco Malfoy (v3) by: little mojo
Draco Malfoy (v2) by: little mojo
Draco Malfoy by: little mojo
Hedwig by: little mojo
The Leaky Cauldron Sign by: little mojo
HP & Lightning Bolt (v2) by: little mojo
Thanks go to The Leaky Cauldron, although the links are broken on their site I was still able to access their stash.