Lets face it, there's not too many things easier to use, than the chipboard cut-outs. I've used everything from designs like this one, to halloween ghosts & swirls. Lay it on your l/o until the positioning is right, then tape or glue it on.
I haven't yet used these but I just adore them, so shiny and if you want to cut them you can. I already know what I'm going to use them for