In the early days of our electronic timing, we used an IMHOF 2000 Video Timer, which had an integrated video printer.
We were prining those pictures on request and took 1 or 2 DM for them.
At one or two events, we tried to sell Lynx pictures, which were printed using an canon selphy CP 400.
But there were not many pictures requested.
The costs are about 50ct per picture + the printer, which one of us allready had.
We set up an addition notebook computer connected with the timing computers, but placed at the main spectator level.
For this, we needed another person, which had to know, how the lynx software is working...
ciao
dirk