I did that with a quilt awhile ago.
either go with what you like or tell her you're making a quilt for you aunt and don't know what colors to make it.
maybe she'll give you a hint of the colors she likes.
on the other hand. hot pads or pot holders can go anywhere. make her kitchen stuff.
Maybe make her a set of cloth napkins and a placemat. Everyone needs potholders. or the microwave hot plate holders.
Maybe she's one of those people that don't like handmade items. Maker her a change purse for her bag. start small and see how it goes over.