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Stamp + archival ink + transparency; flip over; alcohol ink + palette + water-brush filled with blending solution. Really nice stained-glass look.

This tutorial shows how to make a little charm using epoxy clay, mica powder, and a stamp. One could probably use other types of clay, such as polymer clay or air-dry clay, though the effect might not be quite the same.

Square (or rectangular) rubber stamp + painter's tape + resin = interesting textured plate! The depth of the texture depends on the depth of the stamp. Also only works with rubber or silicone stamps; the transparent ones get stuck to the resin.

Quick overview of embossing with stamps, embossing ink and embossing powder. I used to do this ages ago, this is a quick reminder of the things needed. (Though I didn't use a heat tool, I melted the powder under the grill. A heat tool probably offers more control).

Cardstock + water + stamp + paint = faux leather. This is probably most effective when the colour of the cardstock matches that of raw leather - that beige/tan/peach sort of colour.