Rivo: Won't the capsules be full of holes and get coffee everywhere?

We find that the coffee pretty much stays in the cup.  Some leaks through, but once you pack it, the compression seems to hold it together.  Obviously you can joggle it around a lot or the coffee will fall out, but most people make them and then just set them aside till they are needed.  Another way to use them is to place a foil on the bottom too.  That would work.