How do I make an item?

[Qwertygiy]

Here: http://buildism.net/asset/character/G/Gi...1333478356 What you do is just make the item on the character then remove the character (you've made a skin before so you know ^.^)

I've tried twice and I can't get it

You need some kind of program that supports transparency -- I use GIMP, personally, but paint.net and Photoshop also work.