I don't think I know any twins with too annoying of names.
The ones I've known I can think of are:
Stephanie and
HeatherStephanie and
LucyCourtney and
NicoleAmy and
MitchAshley and
AmberMatthew and
MarlinJoshua and
JeremyMadelyn and
Kaitlyn
I'm not a huge fan of the ones that start with the same letter, and
Madelyn and
Kaitlyn are too matchy, but none are really that bad.
Oh, wait, on some family tree thing I remember seeing second cousins or something names
Jaxon and
Dixon. Bleh!