Bridal Shower Gift HELP

LADIES! I NEED YOUR HELP!

I’m a bridesmaid for my boyfriend’s sister and her bridal shower is this weekend. I HAVE NO IDEA WHAT TO GET HER! I’m on a very low budget and this is super last minute.

I was thinking maybe a generic GoPro for their honeymoon in Hawaii? I wish I could put a cute basket together for her (I love stuff like that) but I just don’t know what I’d put in it, especially on my budget. Any help would be greatly appreciated!

ALSO, what do I wear?? I’ve never been to a bridal shower or even a wedding!