Believe it or not, one of my customers picked the sculpted pen and matching letter opener from the PSI catalog. She has used it every business day for 2 years (at least she says). I see her regularly at church and recreational functions and she still says she uses both every day at work.
That was the only letter opener that I ever made...I think I bought two..if you like, you can have it (I will check in the morning). It's not that I don't like it; I just don't use a letter opener and no one has asked me for another. Free, of course.
That's my only experience.