The pattern I used:
I only had to make minor adjustment to both the top and the bottom so it was pretty straight forward project. I used a black swimsuit lining on the inside and zigzagged (did I just make up a verb?) thin elastic tape around the bra and the bikini bottoms (that way the bikini won't come off as I get out of the water).
Not sure that this bikini would work in St Tropez but it will definitely be suitable for wearing around the pool while the seniors in our building watch me chase our water-crazy toddler.