A photo guest book - polaroid and washi tape! Get a cheap but cute polaroid camera, a blank notebook, and washi tape in your chosen colors. Have guests take photos and then leave a message underneath. Love this, but polaroid film is expensive and rare!
table with craft and office supplies -- pretty card stock, colored pencils, an array of stickers -- and invite guests to embellish their notes with fun designs. Finished cards can be placed in a clear glass bowl and arranged in a scrapbook later