Is it possible to make an animation were your character bends over a dead body and dip a feather in the neck and then replace it with a retexured bloody feather, just like in Assassin's Creed?

If it's so could anybody with more animation and scripting experience than me try to make it?

Umm...what's the point? Animation is hard, very hard. People only animate if there's a reason to. As far as I can tell, there's no point to it. However, one could quite easily to make a script where if the PC "opens" a dead body with a quill in his/her inventory, it would be replaced with a bloody quill. Retextures aren't too hard, also. You, of course, would have no animation.

OK i just tought it woud be cool.