I don't have many dingfonts in my repertoire. This is the second and probably the last one for a while. It is difficult to decide whether this would qualify as a true dingfont.*G*
We used to use this two-handed sign language at school. While the other kids were writing papers on subjects we didn't take, we were supposed to be as quiet as mice. The only way to communicate was with sign language. Morse code was banned very quickly, for obvious reasons!