Jim's mom celebrated her 90th birthday in Feburary. All but one of her sons made it out for the party we had.
She's still knitting too. She's still making teddy bears, and vests for the bears, and squares for blankets for the "old folks", and baby items for bazzars and fairs. For Christmas, I knit the yoke of a Couronne for her and gifted it to her along with the rest of the yarn to knit the sweater. She got the whole thing done by spring.
To get a great fit on her, I picked a size to fit her shoulders, then after the yoke was finished, I increased on the front to fit her bust. And since I handed it over after dividing for the sleeves and body, there was no weird math for her, just a fun knit to the end of the sweater.
I like how it turned out so well, I've got yarn in the stash to make one for myself.