using my method of making lego heads also made me want to use them
i was able to create a cool prime with 12 points of articulation
and a quick wip of megatron with 5 points of articulation,
using a spare prime head and a lego mini figure i also created my own prime mini figure (kreon)
the 2 figures were mostly made of lego and also a few megabloks halo bits, built to rule starscream arms and kreo basic prime joints.