Uno and Mega simple&safe case + stacking part

So there it is:
A simple case for transporting Arduino Uno and Mega without worries about damage.
The bed surface can be used to place label with firmware name or something...
You will need:
Uno - 2pcs 10x82x58mm sponge, one M3x20mm (25 will work too) SHCS bolt and one about 25mm diameter rubber band.
Mega - the same but a 10x117x58mm sponge...
Blue material, rubber band and sponge recomended for extra protection :D
The stackable part is meant to stick to each corner, it will fit also the