dress, apparently its easy to sew: Its just 4 rectangles. Measure shoulder to hem length, then girth at widest part (hips?) and divide by 4. Add seam allowance. Sew allowing for neckline, arm holes. No pattern needed. 1/2 hour, max!
Individual Rivalry: IT'S HERE!!!! DIY MAXI SKIRT TUTORIAL! Great tutorial on a simple maxi skirt with exposed elastic waist. Also links up to a circle skirt tutorial for girls and women with good instructions on how to sew the elastic on.
. What a great idea, repurpose an old bra to bathing suit. I always have trouble finding swimsuit tops that fit properly. Current trend for bikinis is mix & match, color & solid so you don't have to fret finding or making bottoms that are the same fabric as the top!