Not only is this the "City of the Dead," but it is more commonly known as a common sexual practice in nursing homes and retirement communities. Hamunaptra is a large orgy involving every orifice of every living geriatric in the community. They shove everything that they possibly can get their old hands on and plunge the items inside themselves and the oldies around them. This is most likely the use for any gifts that are given to people over the age of 65.
Boy: Why did the candles that we gave Grandma smell funny today?
Mother: They smelled because someone shoved them into her ass during a Hamunaptra.