Acrylic LED Sign

So my good friend was leaving for college and I wanted to make her a personalized gift.  Unfortunately for me, she already had everything she wanted, so I had to be creative.  I decided to to make a glowng acrylic LED sign with her initials on it.  I first cut the piece of acrylic and then etched her initials into it.  Then, I cut a groove in a block of wood, with LEDs shining up through it.  The acrylic was glued into the groove, so now, her initials glow when the LEDs are turned on.  It runs off of a 9 volt battery.