Sigmar's Garden isn't the only game that is played with elemental proxies. In most transmutation engines, the mors proxy is noticeably lighter than others--its black surface need not show translucency, so it's frequently the only hollow 'marble'. Some bored alchemists set vitae and mors proxies atop two small fabric sheets marked with the familiar hexagonal grid, then lay underneath the sheet. One can lightly tap the grid from below, such that a vitae proxy on that tile returns to rest, but mors goes flying. The game practices manual dexterity and one's judgement of their senses; one can get an impression that certain areas put up less peripheral resistance to tapping, so there is likely to be a mors very close in the sea of vitae. Identifying the tile of every mors, without ever tapping it, is a test of skill. There are a few different names for this game, but the one I was taught was Morssweeper. - Alchemist Kazyan