#2 Paige
This one is obviously a little different due to Paige not being an active member of the roster. She sporadically appears on TV and contributes regularly to WWE Backstage. But why couldn't she contribute as a member of the Firefly Fun House?
Paige is still a valuable and popular figure within the WWE Universe and the crowds pop whenever her music hits. She may not be able to contribute in a physical capacity, but she's among the better women on the mic. She could work on storylines inside Firefly Fun House segments.
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A way to bypass physical participation could be to bring someone up from NXT to do her bidding. She could target someone on the roster and bring up any history they may have together. Her "Fiend" could attack whoever she chooses and do all of the dirty work.
The Firefly Fun House is still creative and intriguing, but adding a real-life character, and one backed by the talents of Paige, would make things all the more interesting. The Anti-Diva says she's retired from in-ring action and that's fine. It doesn't mean that she can't contribute in other ways. It's a shame she isn't being used in some capacity like she was when she managed the Kabuki Warriors. This could be a way to allow her to do something different.