Good idea Wayne...I always take sidewalk chalk & rub over the stones. White really makes the pics show up really well..looks very antiqued..really makes a nice pic..and it just washes off in the rain..no harm done. But shaving cream would serve the same purpose..With the chalk, you can rub over the whole outline of the stone..and some of the very old ones have beautiful designs on them..In the pic, it all shows up so well..My 3 yr old granddaughter loves to help me with the art work...only problem is she does not like to use white..blue seems to be her color of choice..but it too looks good in a pic.and she really enjoys helping so much. She also loves finding any kind of critter at the cemeteries (particularly lizards)..They certainly don't hang around long with her after them. LOL!! She chased 3 deer out the other day..She is the only weapon that I carry with me. Joan Broach Morris