Strange and/or really difficult approaches

Howdy all,
Got into a discussion of the strangest and/or most difficult instrument
approach procedures with some friends recently. One guy used the
GUC ILS RWY6 as an example (rules: you do NOT have GPS, are /A direct HBU
from the NE, and CANNOT be vectored to the LOC due to radar coverage, a
typical scenario coming from Denver).

My example was the ONT NDB RWY26L procedure (rules: you start SW of PDZ,
cleared -PDZ then cleared for approach, no GPS, not that it should matter
here.) Using MS FS2004, which is what I goof off with for these practice
approaches, doesnt do this one justice as, if I remember right, the HDF VOR
is barely giving off a decent signal between HIGRO and PETIS.

I'm sure there are stranger or more difficult procedures than these.
Anyone got any to share?

Chris