The easiest way to go is to start with a preformed body or couple. There's something for everyone: Occupations, such as construction worker or doctor, sports enthusiasts, such as basketball player or cheerleader, couples-oriented figures from the romancing stage to toppers for the wedding cake, and a bunch of other fun stuff. Then you need to upload some good photos for the designer to work with. The don't need to be professional shots, but they should contain all the necessary visual information: A good front view of the face is essential, profile and rear shots are optional, but preferable if you want a really good likeness (remember, these are 3D caricatures). That's it.
Place your order and wait patiently until the little figures are skillfully crafted and painted by hand, then packaged up and delivered to you. You'll receive them in a couple of weeks if you go with a preformed body, and about a month if you want a fully customized figure. It's all clearly explained at the 3D Mini Me website, and they also have a 3D Mini Me Etsy shop with a good stock of preformed figures. So click on over and check 3D Mini Me now. This 4.5 inch high happy lovers design is $99.97.