Looking for inspiration for a ficrional series

Hi. I started writing a BB series last week. It began as a romance but evolved into a sci fi/spy story. As it goes on the genres will change.

I am looking for inspiration or suggestions for BB techniques and outfits to add in future chapters. Be as creative or wild as you like, but I will not write any familial stuff or anything involving blades or needles.

There are 3 main primary female characters: Hope, Faith and Mercy, and have distinct personalities that change as the story progresses. I will consider introducing more characters in the future too.

Suggest away in the comments!

Thanks.