This sign for usLEDsupply.com was built into the roof peak of our trade show booth. LED strips (which you can cut every 2-4") and LED modules are very versatile options for creating custom signs. Their size allows them to easily fit into small areas and tight corners. In addition, you can have independent color sections which you could design around your company logo and colors. Frosted glass or any other type of semi-transparent material is a great way in which you could allow the light from the LEDs through.