By all means make your own card or buy a blank one, but make sure that you actually write something heartfelt and make the person that you're giving it to feel special.

你应该想一下办法制作属于你自己的卡片或买一张空白的，但必须写上一些你真正的内心感受或让收到的人觉得特别。

youdao

While a heartfelt, hand-crafted card might be all a mother could ever want, we know a few flowers, jewelry, dinner and more are also in the wings.

FORBES: Mother's Day By The Numbers