Is it safe to use styluses with iPads?
20€ is a bit steep for a stylus, you can find many on e-bay and such for way less than 5€. They're all generally the same thing: a stick with a rubber dome on one end. The rubber has a similar capacitance to human skin, so it can be sensed by the screen. The rubber dome on the end is squishy and very soft, it will not scratch your screen.