Here Is A Fun Idea,

next time you go to the beach,

 by yourself or with the kids, instead of chucking stones into the sea, look out for alphabet stones, Clotilde Olyff, a type designer from Belgium, collected stones at the beach which resembled the letters of the alphabet, this is the article that gave me the idea,

 here are the other stone alphabets, some of which are featured in a book called 3D Typography, they look like they are digitally made, bur evidently they are all real pebbles, of course collecting them on the beach and looking at them is one thing, taking them home is another matter,

before doing that check with local laws to see if peddle removal is allowed, photograph APEX/APEX, you do not want to end up like this holidaymaker.