Need Bachelorette Help! Need alternatives to “squad”

My little sister is getting married. She is super into themes, parties, cute catchphrases, hashtags, etc. I’m the introverted one who would just prefer stay at home lol. BUT I am trying hard to make her bachelorette party awesome (she’s chosen a destination beach party, which seems extra to me, but her friends are all into it and I’d have to fly no matter what, so... 🤷🏼‍♀️

Anyway, I’m working on tee shirts and a cute logo for all her stuff. I may not know parties, but I can do graphic design and decorations! I’ve created a mermaid theme to go along with the beach and the logo. They say [bride]’s last splash. I was going to put “mermaid,” “mermaid of honor,” and “mermaid bride” on them, but apparently some of the women coming are not in the bridal party. I detest the word squad and I don’t want to use tribe because it’s culturally insensitive and I’m trying my best to be more aware of my language. I’m just at a loss for a cute alternative that won’t leave the guests who aren’t a part of the bridal party feeling left out.

Any clever ideas? I can draw, but catchy catch phrases aren’t my forté.