Found a sack, tried to apply it to my buddy, it put it on my head...
Sack graphic does not appear on my character, able to see and hear fine, sack becomes a single slot head item thats stored in the local array it came from.
Gave to friend to try on me, same thing, did not appear on him even though it said he applied it to himself, unable to apply it to others. We did not however cuff one another if this is a factor.
View was left unchanged (able to see), no graphical change to characters.