Go for it AMD, it's very cheep to do just the etching. $20 for the etcher, and you can return it afterwards. Maybe $3-4 for practice acrylic to get used to it. Other than that it's just a time investment.
The hardest part for me was actually wiring the LEDs and getting them working properly. The etching was really simple. I don't even think I have much artistic ability, just trace a picture on the other side.