I've had this stamp by Personal Impressions for a while and not got to use it. I thought it looked liked the pebbles you see under the sea when paddling, so that is why I've used it for the "At Sea" challenge at Less is More this week.
It's also one layer week at LIM so I stamped directly onto my card using TH pumice stone and old paper, and sepia versamark. Then with a little diluted aqua tint I went around and over some of the stamped image. Finally I used a Hobbyart sentiment stamped and embossed in black ink over the top of the image.
I'm also entering this card into the challenge at Shopping Our Stash which this week is Sounds of the Sea.