The last item I paid for was a pre-order for the 3A Halo Commando.
I'm normally a MOC collector but I have a funny feeling I'll be breaking the seal on this one.
But the one that is in my possession that I'm most proud of is my Joyride Studios Halo 2 SDCC/Toyrocket Exclusive White Elite Prototype unreleased yellow variant 1 of 2.
They originally intended to produce the yellow one but before it hit production they pulled the plug and went for the black instead. I prefer the yellow anyways so double score.