This is a pretty cool concept and pretty easy to make too - cheese or Bacon taco shells.
As far as I can tell for the cheese, just grate it, shape it into a taco shell, but flat. Melt the cheese slightly then let it set in the right shape.
Same goes for the Bacon - but I would guess for the Bacon we'd cook it in the oven and have it already in that shape.
Could be great fun and super tasty!