Enthused and very self-confident after finishing my first sweater, I whipped this little top out in all of three days!

It was so easy that I think I'll make one in every color and see if I can sell them.

--UPDATE 5/16--
Here's my second one, a better example of what I'd wanted it to look like:

Don't you hate that no matter how much your brain begs you to stop stitching, you can't?
Here is the pattern I made for it. I don't know about altering to sizes, but if you have tiny boobs like me these numbers should work well:
Cast on 104 stitches with round needles. Join in a circle. Be careful that it isn't twisted at all.
Make the first 2" ribbed by knitting and purling. I did k4p4, but I think it's too thick. For the next one I'll probably do k2p2 or even k1p1.
Now change colors and knit 4 rows. Alternate colors every 4. Continue this until it's 10" (for a belly shirt), or longer, according to preference.
Make one more stripe so that the first 60 stitches are ribbed like the waistband and the rest is regular stocking stitch.
Now bind off the 60 stitches that you just made ribbed.
***Starting with a straight needle, knit the next 22 stitches and keep the rest on the round needle. Go back and forth on these 22 with straight needles (you will now need to knit one row, purl one row.) Continue to do the stripes.
When you begin your fifth row of 22, decrease one stitch. Continue decreasing stitches at the beginning of every row until there is only one stitch left. Make a long chain with the last stitch.
Repeat everything from *** for the 22 remaining on your round needle.