Buying Winter Keys

[Staying_Classy]

Dunno what they're called, what they look like, or if they are even tradeable, but I want them.
I have metal and some hats I can offer.

 

[Ruelel]

make sure you ONLY buy nice keys

 

[Xel'Naga]

make sure you ONLY buy nice keys

Why not naughty keys? Smismass weapons are surely going to be pretty valuable, as well, given their cosmetic rarity.