So I used your idea to make Dumbledore's/the Elder Wand as well as Voldemort's wand as a present to my best friend. They turned out amazing if I do say so myself. I used mine at the midnight showing and people were flabbergasted that I had made it myself. So I have you to thank for that. I will put up some pictures soon. My camera is currently not working though.
They are simple to make! A good friend of mine made a replica of Dumbledore's wand using this tutorial, it looks amazing. She scuffed it up a bit with sandpaper and applied a really dark woodstain to finish it all off (Bombay Mahogony i think) it had a sealer in it as well so she didnt have to put super shiny polyeurathane on top.