First up is to find the right doll. I already had some old Barbie dolls sitting in storage, so I checked those out first. Try to get as close to the image of Wonder Woman as you can (or want). Now, this can vary depending on the version of drawing you pick. I've provided a few images below. On a side note, here's a blog
discussing her portrayal over time (more character than illustration, but still helpful).
In the end, I found several Barbies that could fit the bill, each with different strengths, so I decided to make the most of each contestant in the 2008 Imitation Wonder Woman Pageant.Ballerina Barbie
Pros: opposable limbs, blue eyes, "diamond" earrings. Cons: blond hairCasual Dog-walker? Barbie
Pros: narrower blue eyes. Cons: blond hairSchool Teacher Barbie
Pros: dark hair, red lips. Cons: brown eyes, molded with one bent arm and one straight arm, tan skin tone.