eta you will most likely have to grind out any lego hat to get rid of the lego attachment piece.
it is going to vary item to item as some are ove rsized for lego scale. also depends if you are talking arah heads or newer style.
spec has modded some great fantasy weapons from bw.i think drbindy modded a lego bowler hat. i modded a bw hat for my snake eyes. he had so much hair i almost ground a hole in it though.
this one. it is real big because it fits the plague dr mask that fits over a lego head.

i have this wizard hat and it scales ok with newer style heads

this should scale ok if it is an accurate depiction

they have some great prices. i forget but i think i paid more for shipping than the pieces i got. i shopped in the sale items only and pieces were .10-.25 cents each
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The more you run over a dead cat,
the flatter it gets.
-Anonymous