I haven't seen one of those in ages. But a net search did produce this single hit. You might try other search paramters.
http://www.wholesalehunter.com/produ...xeblankgun.htm
Your call, but I much prefer the removable cylinders and having more than one.
One thing to consider is this. Schools are becoming a little sensitive with starter pistols on school grounds. The day may come where we may have to use school provided equipment and use a device that gives both an audible sound and light flash. Worse yet are those "staple-gun" like devices that you load with a plastic stip of crimps.