The way I created the fourth and fifth case are not directly relevant for the Fab Lab, but for the overall project. I will briefly include how I made them.
For the last two designs I use a very easy technique I « discovered » as a child: wet tissued are brought into whatever form you want. When they dry they will more or less remain in the same position and stick together.
Out of wire, tissue and water I now want to create spooky looking leaves. First I create the form out of 0.9mm wire. Then I wet some tissues, which I wrap around. I think with the light from beneath this might have a good effect, since the wire might be visible as a shadow.