Ya know, I've considered, for a long time, drilling out the rivets on my case and buying countersunk copper hex bolts and matching nuts, and then reassembling it. Alternately, if your aluminum is thick enough, you could tap all the drilled holes and use just black or copper countersunk hex bolts and it'd look pretty badass, and you could disassemble and reassemble at will.
No no no...I'm talking about the really really small screws that you need to assemble the brushed aluminum parts. I have no problems riveting them back, I just need the screws for the ones that can't be riveted.