We always have them available. Generally people will take one for the 1st NATCH, 1st VNATCH and 1st All Around - but none after that. If they get 2 at one trial, I'll add the lettering to make it work for both.
I make the bar (for our NADAC and AKC Trials). I charge $10 per bar so I probably make a little on each bar but if you add in all the waste in lettering, ribbons, driving around to find all the stuff, cutting the bars, acetone to clean the bars, etc. - it's probably not more than a dollar or two per pole if that. For AKC, they order about 10 at a time. For NADAC, I just charge whenever someone takes one. And for Toys for Tots, I donate the finished bars.