I started out with a normal swimming top and made the shorts out of leather. After looking at some other Yoko cosplayers I got the idea to make the shorts and top out of pvc vinyl. I decided to go with pvc for the bra, and shorts because to me they look shiny in some reference pictures.
I changed my mind on the gloves, and hand stitched them out of leather instead of pvc. Go figure, women never know what they want. :)
As for the wig, I purchased most of the supplies from amphigory.com. The base wig is a femme fatale in ravishing red, the extensions are for the updo and the forlocks, the ponytail itself is another wig longer wig in ravishing red (I got this idea from Heza-chan, she gave me permission to use it! <3 Such a sweetie). The wig is a custom color I dyed, since Yoko's hair color seems different in certain pictures. I felt ravishing red was too bright, especially for my skin tone, so I dyed the wig using the FW Ink method.
It's the femme fatale as the base wig, and an enchantment as the ponytail. To cover the base of the femme fatale wig to pull it up into a ponytail, I had to sew extensions in. The extensions also make up the forlocks/long side bangs in front of her ears. I pulled up the hair and stubbed the femme fatale, and sewed on the enchantment wig to the stub.
The gun had certain pieces of it commissioned from Fabian. He's a very nice guy, always so busy with school. I can relate. He constructed the bipod feet, scope end pieces, muzzle, and gun grip. The rest of the gun is made by me out of MDF and PVC pipes. I assembled the pieces and painted the gun.
The Boota plushie is also made by me, sized to fit inbetween my boobies. I just made up some dumb pattern from scratch and it worked.