Should I get my bf's mom a x-mas gift? ?

She is VERY picky, we have never formally met, but I can just read people by the way they act towards others. She is very snobby, bossy, and demanding. I do admit, that I want her to like me, i love her son and i would like to continue being with him, its already been 3 years and I know she has a grudge against me because ive missed some opportunities to meet her. You guys don't understand, every time i'm about to go up to her, its like she makes these faces (like she's smelling sh*t or something) and she rolls her eyes and makes this *ugh* sound. So i get mad, and tell my bf, you know what tell you mom to go f*ck herself, i meet her when i want to and when shes in a good mood. its been 3 years and she still hasn't been in a good mood, my bf of course tries to defend her and say she just going through menopause, but I AM a woman, i know shes just a plain ol' simple btch. SOOOO i feel like this x-mas its time. Its Time to show her who's boss. haha. NO but seriously, i'm going to try to be sooo nice, its just gonna kill her. NOw, I don't know what to get the witch??? I am not contemplating on getting anything expensive, but i want something meaningful, strong, and conveys a message of matureness. Limit 50 bucks. maybe even less. I have a big family.