These triangular trees are a great way to use up short leftover lengths of ribbon. I use double-sided paper-lined adhesive sheets (such as Fabric Fusion). You just peel off one paper liner and press the ribbons next to each other on to the sticky side. Trim it into a triangle or whatever shape you like, then peel away the second paper liner on the back and press your ribbon triangles on to cardstock. I like these for a non-traditional Christmas card!