if you haven't looked on etsy yet, i would look there. seasons have no meaning on das internetter. :P
other than that, i'd look on pinterest for layouts. the trick is not to pay attention to the "window dressing". look at the shapes used and how photos are arranged. you can always find and mix'n'match supplies to get a halloween version of something.
armour is so fun to make! :D
i've made a couple viking hats from craft foam from joanns.
if you want to find out about working with worbla, look up "cosplay armour" on youtube.
there's TONS! and worbla's a bit expensive, but it's fun.
ok, i know it's march and now almost april, but ima make a dragon egg as soon as i finish thess bracelets i'm making for a wholesale order.
because this is exactly the kind of weird and silly i like. :D