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I like your red obstacles Norbert, they remind me of those things people who do specific martial arts kick/punch, they often spin round. As you can see my knowledge of martial arts is somewhat lacking, but hopefully you know what I mean! 
Updated Fri Sep 28 2018 13:30
“Wooden Dummy” appears to be a phrase that gets results online… good old Google 
When you do the oscillating part of this section, you could have these rotate around, could look very cool!
Yes, I know what you mean, I have trained Win Tsun a long time ago.
But this obstacles are a result, without a front stick one can see something when the rocket go through the obstacles.