Not planning on it, but my family isn't big on gift-giving, generally speaking. I usually just give my mom a call to wish her a happy mother's day. It's a nice idea, though!
Since my mom watches J at least once a week, we are doing a photo book of all the pics she sends throughout the day, kind of like 'a day a nonna's house'.
Re: Mother Day Present for Grandma?
http://i46.tinypic.com/2uo56kw.jpg