Skeleton costume is a Hax!

[Noodleleg]

There is no stat difference, but, in my opinion, looks a lot like debuffs. Notice the difference on the top left, with and without the skeleton costume.

http://i1160.photobucket.com/albums/q492/Noodleleg/00a30206016ec0794565bf7c84b11806.jpg

http://i1160.photobucket.com/albums/q492/Noodleleg/2a3255d2bbae8153dbfa4a5038896006.jpg

[Memene]

Lol glitch

[Traebeles99]

wow never noticed this but actually its on fireman suit to just checked eberyone else see if its on other suits i only have a couple.

[Lowlyspy]

Pretty sure the skeleton head is just there to represent the fact that you are wearing a costume, similar thing is in SL. The sword definitely looks like a debuff :p

[Bunnyshoota]

All costumes give you the debuff sign, as if the vanity debuffs you :O
Not sure about head.

[Entertaining]

I heard all the costumes give 100 armor.

[Noodleleg]

I tested and there is no stat difference with skeleton costume o_O...

[Deathofan]

Ai debaf yu wen yu were dat costum al stas bicom ziro. Gf! I think that debuff sign helps to know if that bear (mage or bird) has the real CoP and MfA besides looking at sparkles :p