The Fun Cheap or Free Queen: The bulletin board of all bulletin boards...DIY for less than $12! (...and it's GIANT!)
Prayers and Praises Chalkboard verse of week scripture by kijsa
Good for the youth room
DIY - Game Room or Youth Room Wall Decor - It's inexpensive and takes up a lot of room on a big, blank wall. You could paint these to say anything.
Use foil tape from hardware store for simple decorative edges. -- link takes you to Yahoo health -- just pinned for the picture