Alert Whistle and dispenser

bakedbean3d designed these batch printable and stackable whistles for alerting people to possible dangerous events.  I added text to identify their purpose so people don't just give them to their kids.  I'm putting some out in a library box on the street, and made a vertical surface mount dispenser to make them easy to give out.  The whistles print in batches (66 per plate on my printer in about 17 minutes per whistle.

For whistle printing instruction, see the original at https://www.printables.com/model/1443470-compact-dual-chamber-whistle-v2

For what it's worth, I've had best luck printing these with ASA, good adhesion and loudest whistles.  2nd best is with PLA, but sometimes issues with adhesion (and one breaking loose tends to mess up all others around it!).  PETG ones ranged from not whistling at all, to only one side working, to both working but not as easy to use or as loud as with ASA or PLA.   Maybe difference of rigidity or better inner surface when bridging?

If you want to make a whistle with your own text, get the original v2 stl file and use OrcaSlicer or PrusaSlicer to emboss the text. with a thickness/height of 1mm.

The dispenser needs supports to print, but only at the bottom (print in the orientation as it comes in the stl file(s)).  I printed it in PETG for extended outdoor use.  There are three different heights of dispenser to choose from.  You may need to clean up the surface inside the dispenser tube so that whistles don't get stuck or rotated as you insert them.

I also added an stl for a sign inviting people to take some whistles.  Pause the print about 4 or 5 layers from the top to change the filament color to get the lettering to show.