I am so in! Need ideas too We have made this a yearly tradition now for my Mom. DD started this year on March 1st (Grandma's b-day) and will continue until Easter. Since DD lives in the same town it is easy for her to pull off... I am the idea/money/e-mail person. We set up a fake e-mail called Peep Pals (would be totally creepy in any other setting ) and send her random pics and stories of the Peeps and their travels.
DD just did a Peep parade the other night... G'ma lives in an apartment building and DD had them lined up from the entryway door to G'ma's apartment, complete with toothpick flags!
G'ma swears she knows it is us, but can't prove anything and our motto is deny, deny, deny