While I'm still searching for something 1) useful 2) cheap 3) stunning to make for my sisters that I haven't made them already, here are some handmade gift ideas for you from the hallowed annals of mmmcrafts:
And you still have time to whip up a messenger bag for mom, tutorial here. May I suggest a flower on the flap? Perhaps a really big one of these? They look so lush. You will need to sew it on after the bag is finished, not before.