My boys made me Mother's Day cards during children's church on Sunday. If it wasn't for children's church, I would get nothing for Mother's Day--the boys are just too small to buy presents yet.
Of course, this year I got two cards (one from each of my sons). Last year, I only got one card because ds #2 was too little to make one. This year, he loves crayons and had no problem scrawling on the card.
It does not matter about presents or cards really. What matters is the love that we share day-to-day.