Deleted all but material_zero and nantaimori. I'll wait a bit on seeing what others think on whether to move material_zero to a pool or some other proposal. As for nantaimori, I don't think it should be deleted. Right now there were only 2 deleted images under nyotaimori that matched the description, but I went ahead and gave them the nantaimori tag. Right now nyotaimori (女体盛り) is defined as only covering depictions with girls, and I think it would be a hard sell to try and expand the tag beyond that when the tag itself (according to wikipedia) literally means "female body presentation" and refers specifically to food served off women.