Valley Pan and Valve cover. Putting everything

[NittanyX5]

back together tomorrow. Cleaning all the visible coolant and oil buildup in the valley area to make it look neat (so much oil from the leaking valve cover gaskets).

While there I was looking in each of the intake chambers and saw little sediment on the two valves of each of the eight chambers. I am using QTips to try and get them clean. Is there a smarter way to do this?

I already cleaned the intake ports on the removed intake manifold.
(Note: This is all part of following TwinTurboGTR's ValleyPan ValveCoverGasket DIY)

2001 BMW X5 4.4i
(about 165k miles)