If you've never done a splatter manicure and are interested, there is a good tutorial from The PolishAholic's blog that you can read and I would also suggest checking out the different splatters that Sarah from Chalkboard Nails has done. If her splatters don't inspire you to try it, then nothing will! Here's a link that will take you to a list of all her blog posts tagged with the splatter label, http://www.chalkboardnails.com/search/label/splatter.
A few things that I learned while doing this for the first time: practice and experiment! There are various methods to do this and you might find one way works better for you than it does for someone else. It definitely helps to hold the straw a few inches away from your nails. Too close and you might get big blogs of polish that just flood your entire nail. It also takes some practice to figure out exactly where to hold the straw. I can't tell you how many times I tried it and the polish splattered in a circle around my nail without any of it actually hitting my nail! I held my nails over a paper plate, which was resting on a big piece of cardboard. I wasn't sure how far the polish would splatter, but it didn't go any farther than the edges of the plate. It all will depend on how far away from your nails you hold the straw. Just be sure to cover and protect the surface you are working so you don't get polish all over the place. Here's a shot of how my paper plate looked after I was done with all 10 nails.
Even though it can be pretty messy, I definitely plan to try this technique again with different colors. The edges between the splatters of color seemed to be more defined before I added top coat. The next time I do this, I'm going to try to be more patient with drying time before adding top coat, to see if that will cause the end result to have some more sharp edges between colors. But for a pastel splatter, I do like the way the colors kind of melted into each other.
***Edit*** April 8th 11:41pm: I had to come back and add a picture of my thumbs, especially my left thumb. Even though my thumbs ended up having the least amount of splatter on them, I think I like them the most. I don't know if it's that Orly Lemonade is just that pretty or if it's the subtle splatter versus the bigger blobs on all my other fingers, but I have been just constantly staring at my left thumb all weekend with this manicure.