While shopping in a German specialty store this morning I found some coloured paring knives by a Swiss company called Kuhn Rikon. The one that grabbed my attention was an orange paring knife that is fitted with a very secure coloured plastic sheath, and a coloured blade. Given that some folks like brightly coloured gear, and that often most of the tasks performed with a knife are simple food prep, I figured this might be a decent option to try out. Reasonably priced and easy to find if it falls off the log you sat it on into the leaf litter.
A few other option as well.
A few other option as well.