What to get my horrible ungrateful mother for xmas?

Don't say nothing because, that's not an option. If i got her nothing i would never ever ever hear the end of it. She is very ungrateful i feel like no matter what i do i can not please this women what so ever. For example One year i bought her these lawn ornaments that weren't cheap what so ever. For her garden because she likes stuff like that. The next summer i saw them in her garden and they were a different color. so i asked her if she got different ones or what and she said no she painted them she thought they would look better in a different color. And then she said now they don't look as cheap. I spent 50 dollars on each ornament. They didn't look cheap to me or my sister what so ever. another year i got her a bunch of kitchen stuff because that is what she asked for. I spent tons of money on her that xmas I bought her a kitchen aid utensil set. ect... Later after she opened it she said she wishes i would of gotten her a metal spatula not a plastic one. WTF!! And then last year i bought her a sewing machine that cost 150 dollars because her's was going to **** and she kept borrowing mine so i thought that was a great gift. And she said oh this is wonderful. (never thanked me) and had a weird almost disappointed look on her face. which i wouldn't understand why it's not like she told me what to get her that xmas and I thought it would've been a wonderful gift. And it's not like it was the cheapest sewing machine out there our anything it was one of the more expensive ones. And then a few weeks ago she was over at my house and said your sewing machine has more gagets on it. WHY would she even mention that and where did it come from. It was just out of the blue she just said it. And i was like oh really i didn't notice. What the heck was that comment all about. She does it to my sisters gifts too. I hate how hard we try and please her and then she doesn't even appreshate what we do. Also I just remember something else that pissed me off. One year i bought her something that you can hang in your window. And it catches the light. It was really pretty and it said something about mothers. I got it at halmark and it wasn't again cheap. Well she asked me if i got it at the grocery store. And i said no. It even came in a halmark box why would she ask if i got it at the grocery store. And then she said oh i saw some like these at the grocery store for 5 dollars. ARE YOU KIDDING ME! I just want to get here something she wont later complain about! but maybe that is impossible any ideas? BTW this year i am on a budget so i only want to spend 50 dollars or less!