This is an old thread, but I took the initiative this year and we had a brand new trophy case given to us by the school that sits right in front of the principal's office and the front entrance of the building. We even have other display cases for all our stuff. Our sponsors all share trophies as well.
I know this may not be much for other teams but it felt like a huge showing of respect for our 14 year old team to finally have a beautiful trophy case at the gates of the school and the principal's office.
We're really happy with this. 09 was an awesome rebuilding year.