DIY Edible Glitter Ice Cubes from A Subtle Revelry. Don’t mix the glitter with the water before freezing. It won’t work because the glitter will sink.
DIY Pretty Layered Drinks for Kids or Adults from Makes and Takes. At the link are drinks posted by sugar content and suggestions for top, middle and bottom layer beverages. I’ve posted layered drinks before and the rule is that the liquid with the higher sugar count stays on the bottom.The sugarier, denser liquids go on the bottom and the less-sugary liquids get layered on top (check the sugar content of beverages).