From Evelyn Waugh: Portrait of a Country Neighbor by Frances Donaldson:
He entertained himself with grandiose projects in his garden. He built what became known as The Edifice – a semi-circular stone wall about ten feet in height, surmounted with battlements and with a paved area beneath it. When this was finished he advertised for human skulls to adorn the battlements. He received a surprising number of replies, which I doubt he had expected, and he had to refuse most of the offerings.
“Here’s Evelyn walking up the stairs towards his Gothic Edifice a year or two after its erection. At some point, when there were six spikes along the top of the colonnade, a visiting American asked what they were for. Waugh replied that he was planning to put skulls up there and had advertised for such in Country Life, Tablet and The Times. A deliberately obfuscating answer? It looks to me that it’s saints, or monks, or other such revered figures that Evelyn actually erected.”
— From Duncan McLaren’s wonderful Waugh website.