In reply to Cheese Monkey:
It's an annoying quirk of Irish mountain geology that there's not as much scrambling in the mountains as you'd think there'd be.
As Welsh Kate mentioned, there's the Coomloughra Horseshoe, although to be honest what scrambling there is on that is pretty easy (the Beenkeragh Ridge is about the same as Striding Edge in my opinion...some folk mistakenly compare it to Crib Goch). It's a great day though. The Reeks Traverse has two interesting sections over the Big Gun (excellent Grade 1 if you follow the crest) and the Cnoc na Peiste arete (tends to be avoided although I found it slightly easier).
Howling Ridge is mostly a scramble with some VDiff pitches on it.
In addition there's the Hag's Tooth ridge up Beenkeragh. The direct ascent of the Tooth itself is around VDiff (not done it) but if you go around the back you can double back to the summit (easy scrambling, big situation) and then follow the ridge up Beenkeragh...you can take in as much scrambling as you like on this, or barely scramble at all...your choice.