I used a nail decal kit by Kiss, in Push Up. I noticed that there's are a lot harder to put on, and not get wrinkles under the decal. They are just stickers after all, but for a quick color change I suppose they work alright. They have tons of colors and a few that have that are bejeweled. The edges of the nail are when wrinkled will start to collect water, so it can get kinda gross.
I'll probably end up taking them off in a few days anyway.