Martha Martha Martha... you are so clever!
Here is a sweet DIY option for capturing well-wishes from your guests. Firmly plant branches into something large and sturdy {shown: Manzanita branches in stones} and then wire the birds nests to the branches. Place the paper dove cut-outs next to the gel pens {in a variety of colors} for guests to write their notes with. All that is left to do is instruct your guests to place their well-wishes into a nest. Fun. Sweet. Interactive.
Preserve the notes... how fun it would be to celebrate your anniversary every year by taking the notes out of your scrap book and re-reading them! So romantic...
Source: Martha Stewart Weddings