I saw a 'how to video' that Kat Von D made on how she makes her own shirts, so here's my version.
Kat kept her sleeves on which I didn't like so I omitted that part, but you can leave the sleeve just cut strips onto the sleeves.
cut
Easy no sewing grunge trashy style top!
long sleeve t-shirt
old t shirt to sexy top in about an hour
Spiderwebby Shirt
tshirt t-shirt t shirt skull cut out top shredded