Looking better after transplant, keep them lights close to them and you'll end up with some nice tight nodes.
You can get them ys or splitters just about anywhere, look in the hardware/light sections, walmart home depot any major store such as that will definitely carry them, they cost anywhere from buck fifty to three bucks depending on where you're located and where you purchase them..
Also I recommend visiting your nearest thrift store and look for some of them vanity light strips, I see them everywhere cheap, even at lowes and such, they come with like 3 - 4 - 5 - 6 sockets, a vanity strip and some splitters should do the trick.