So straight up, I'm cheating with this one. We never actually got to see Donna as Wonder Girl in YJ (she was supposed to join in Season 1, but rights issues didn't get hammered out until too late into production) and even though she was later added in Season 3, it was alongside Garth as a UN ambassador and not in costume. And while she canonically WAS on the team between Seasons 1 and 2 (B-12, joining right after Garth+Tula but before Jason Todd), she left the team before the events of Legacy. However, the designer of Young Justice, Phil Bourassa, DID design a version of Donna's WG attire for the DCAMU, and while it's probably not the same as what would have been in YJ, it's good enough for me.

Not much to say on the model though. I pretty much built it from different existing models... I think one of the WG alt skins for the base to get the height, hair from BC, modeled the boots and belt. I originally tried using a cricut to cut out clean star decals, but the points kept tearing and I finally gave up and just painted it by hand.

Uploaded 3d model to the same Thingiverse pack as Zatanna and Rocket, 5560036 if you want to print one for your own YJ shelf (or for a DCAMU shelf).