If you haven't seen Laur, she's a YT sensation with all sorts of great diy projects. This one is how she created three bikinis, which were inspired by big brands like Nasty Gal and Urban Outfitters.
To make these bikinis, the hardest part will be to find three cute, but different, cheap bikinis that you can get almost anywhere. Besides that, you will need a needle, thread and some scissors. Depending on which of these you make you will also need a zipper and sime banding. Watch the video and you'll see what I mean.
To coordinate your bikini in style, check out this Victoria's Secret hack where you can make your own Cover Up!