BULBERATOR QUESTIONS ANSWERED.

When I get home i'll post a pic of my bulberator, it's just the cracker bit with a valve, but that's the most complicated bit anyway.
 
Here's a diagram of my simple pocket-sized cracker:
cracker1.jpg
 
Anyone with a pic of something bigger, that just looks like a normal cracker? Are they illegal in austrialia or somthing?
 
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