Origami flower - Está flor é do Francesco Guarnieri.
Origami Moth Butterfly Paper Folding Photo Tutorial How To DIY
Origami Baggi Box Origami Baggi Box is a really smart model by Giuseppi Baggi. You can use the same set of instructions for both square and rectangle (A4) paper. Depending on which paper you start with, you'll end up with a different shape box!
DIY Paper Diamonds - maybe spray paint metallic and glitterfy and display in a decorative bowl?