I'd agree - but there isn't a 'Stone Pair' heading here, I expect poor old Holy would have a fit if we asked for one and he had to reassign them all.... I have plagued him enough recently with wee requests for changes to things...
Some of my local examples:
http://www.themodernantiquarian.com/browse.php?site_id=2026
http://www.themodernantiquarian.com/browse.php?site_id=776
http://www.themodernantiquarian.com/browse.php?site_id=706
http://www.themodernantiquarian.com/browse.php?site_id=572
http://www.themodernantiquarian.com/browse.php?site_id=2295
http://www.themodernantiquarian.com/browse.php?site_id=841
http://www.themodernantiquarian.com/browse.php?site_id=2021
http://www.themodernantiquarian.com/browse.php?site_id=2334
Hmmm... does appear to be a few of them around, eh?