Ahhh this is a great question! I have a couple I’ve been dying to do but haven’t for different reasons.
I think my number one is Jim from Trollhunters in his troll form. But my armor making skills are lacking. I also have been dying to do Jun Manjoume/Chazz Princeton from Yugioh GX but my wig styling skills are not yugioh level haha. Also I really wanna do Odd from Code Lyoko in his lyoko cat outfit. And I’ve have the materials to make Inuyasha forever but have never gotten around to it.