My first post on this forum, so be gentle with me! Here is a prototype I made, a result of me experimenting turning off-set lumps of wood. The end result got some little lids, and the spice bowl was the result (essential for all those who enjoy making curry). It's only a prototype (note the incorrectly spaced bowls around the perimeter!) but the idea seems to have been a hit with those who have seen it. I might yet be tempted to make a better version... Wood is lightly spalted sycamore, with walnut knobs for the lids.