Elvis Mother's Day Sound Card Say thank you to your mum in style with this cool official Elvis Mother's Day Sound card. The front of this card features an image of The King of Rock n Roll with the caption "Happy Mother's Day" and a copy of Elvis' signature. When opened, an Elvis style voice says aloud "Happy Mother's Day Mum. Just wanted to let you know that you are awlays on my mind. I hope the day is as special as you are." The inside of the card also reads "Have a wonderful day".