Originally posted by JeffJS
You might try going directly through Pentax but I doubt it will be cheap. I always kept track of my DA14 hood because it was the only one missing the CPL window. The hood for the DA*16-50 is slightly deeper than the one for the 12-24 but it's still easy to mix them up. At this point, I would probably go with a rubber retractable hood though it doesn't offer much protection either. Since the lens is not a zoom, there's no real need for a tulip type hood. Just one wide enough (and with a thin enough mount) not to cause vignetting.

I'm ok with going through Pentax because I when I bought it, I was able to negotiate enough of a discount to offset the full cost for a replacement hood. That said, I didn't expect it would be such an elusive item to find.
I beg to differ, I think the tulip hood is more critical for a wide lens, regardless of whether it is fixed or part of a zoom. If you look at the tulip design of the DA14's hood, a non-tulip round hood for it can only be as deep as the corners of the cut-outs on the tulip, which is about half the depth of the deeper petals of the hood which are what provide the bulk of the shade from overhead light sources.