Carsten! Where've you been bud? We've been missing you 'round here. Hope you've been feeling ok. Anyway, on to your question: You might start with looking at some of Tolkien's reference books that he's put out on lotr....unfinsished tales, simarillion, etc. If I remember, he details the elven alphabet with images in one of them. Or if you want to go the nordic route, look into the Futhark which is the old runic alphabet.
"Terminat Bora Diem, Terminal Auctor opus."