Dude, I've just seen this thread an apologise for not popping in sooner (I don't own any mando so thought this place sacred ground, LOL)
Ace work dude, ace! I need to start doing something 'special' like this too. Loving the hand plates MDF sculpt. I make smaller handplates but are made from clay then plaster, when I got it right. Good thing about plastic is you can form it again if it's pants.
Keep up the great work mate 