I love this poem, and it lends itself so beautifully to this purpose. The first two lines are printed on the front, and the rest of the poem on the inside front of the insert. It's a very quick and simple design, with the shells stamped on a piece of the same crisp, white card (from http://www.madaboutcards.com/), using graduated blues from a Kaleidocolor inkpad and then painted with iridescent Craft Planet glitter glue. The panel is then simply mounted on foam pads.
The tide recedes, but leaves behind
bright seashells on the sand.
The sun goes down, but gentle warmth
still lingers on the land.
The music stops, and yet it echoes on
in sweet refrains...
For every joy that passes,
something beautiful remains.
~ Author unknown ~