I didn't need to go far to find some letters: a few days ago I took a lot of photos in and around my classroom, with the idea of sometime posting a 'journey around my classroom'.
Here are the Letters which a junior class made to decorate the walls a year or so ago:
And this one:
These were made as a fun activity at the end of the year. They worked in groups and each letter had to have some theme or unifying idea.
This E is one of the best:
You can get an idea of how they sit on the walls in this shot; the Excellence is under the whiteboard, the English down the far end of the room: