I have no idea...

Goody bag of her favorite snacks! Its easy and cheap, and if you get the right things they are touched that you know what they like! :)

mine loves working in her garden so I always get her plants to plant but this year I wanted to get her something different, so I got her these solar mason jar lights to hang from her porch. they are extremely cute and she loves wind chimes and things like that so, win! lol

my mil loves dolphins so i am probably going to get her something dolphin related xD or lotion or body spray. something like that.

body stuff and had the kids made a handprint apron

My MIL is a hair stylist so I usually get her new combs, hair styling accessories, etc. Other than that, maybe a purse or jewelry or something.