I mean, I cosplayed Vader once XD Though it was more of a funny cosplay, it was for my university fun show and it was not very... authentic. But it was fun, I had a big calculator instead of chestbox ^^
Love the calculator idea! A lightebite would work too. It sounds like good time and how can you not have a good time wearing any semblance of a Darth Vader costume?! Now I wanna do a full out Vader one of these days/years. lol.
What is a lightebite? Yeah, being Vader was a very fun and good time, though it was very hot. And I could hardly breathe because the calculator was tied to me very tight. I was all tied up with sticky tape XD