I tried foil relief three different ways with my students at my three schools. One group used glue, buttons, string, cardboard stacked pieces etc. The students used permanent marker to color their projects. School number two created their reliefs using only glue, but colored two different ways. One group used brown shoe polish and black acrylic paint and the other group used oil pastels. Here are a few examples of the oil pastel batch.
I kinda like them because they are textural in color as well as the foil relief. I'll try to post some of the shoe polish versions this week.