If you have a point and shoot digital, and can find a folding loupe (US$10),
"the world is your oyster", or in this case, your shell. Instant macros of
coins, stamps, flowers, shells, et al, with excellent depth of field. This shell
cone white tip is only 4mm 1/6". Adjusting the angle of the camera gives
'lens baby' performance (for macros). Just for fun. :-)