First i used all sorts of magnifiers and took a shot with my mobile phone till i bought these...
8 euro in a big retailer over here...3 lenses to put on your mobile phone with a clip.
a 0.67 x wide, a macro and a fish eye 180 degree lens.
normal view with mobile
same view with fisheye lens (i was a bit to fast, normally it's sharp)
normal macro view with mobile
view with macro lens on mobile
some more watch macro shots
so it's a fun tool for macro shots and fisheye in a room.
Have fun all