Sandblaster from fire extinguisher. By Hungyver. 16:49 video:
https://www.youtube.com/watch?v=qglL6bQq_W0
Previously:
https://www.homemadetools.net/forum/...996#post149133
https://www.homemadetools.net/forum/...465#post177694
https://www.homemadetools.net/forum/...810#post179066
https://www.homemadetools.net/forum/...994#post153124
