I think I said I wouldn't bore you with masking shots, but it's been such a huge part of the job, especially in the last few weeks. For some of the circular ports, I used a vinyl masking product I got from an airbrush supplier. It can be cut into strips as thin as 1-2mm, which can stretch and bend into curves. I used it around the edges of the ports and then masked around that with Tamiya masking tape and some low-tack painter's tape (for larger areas, since its cheaper). You can see the progression of the masking on this piece here:
Here's all the bits masked up, ready for the (infamous, since I can't stop mentioning them) 'glow effects':
DSC_0809 by
M-bot2011
DSC_0821 by
M-bot2011
Not to mention everything will also need a good gloss clear coat to protect and bring out the finish.