I suppose a crate full of them could fall on your head ...
Or someone could shine one in your eyes when you were driving ...
But barring something like that, laser pointers do not have enough power to harm skin. You shouldn't look directly at them (as the sign on more than one research laser I've seen says, "Do not stare directly into beam with remaining eye"), but you can shine it at your hand for as long as you like.
amazon.com has a wide variety of laser pointers.
If you have a cat, you know how fun laser pointers can be. If you need a laser pointer for other things such as a power point presentation, Amazon sells them in packs.
It is very difficult to get it through customs especial in Australia, UK and USA
3 pointers...
the different pencil pointers are albert Einstein. Archimedes and some other jinjurikis