Milk, instant coffee
This might seem a totally lame recipe... but i love it, its easy and changes completely the taste of your cappuccino.
Just pour some milk in a BLENDER, add a little bit of instant coffee (that is, soluble grains.. not liquid coffee).
Then blend at max speed for a few seconds, pour *immediately* in a bowl and put in the microwave for one minute or so, depends on the quantity of milk.
You'll get a delicious cappuccino with a lot of foam. Without any need of special machines to produce it.
Very good is also pouring cereals or cornflakes over it.
Worth a shot, its so easy! :)