I will let you pick the wall. Build one specific for the test ?
Not sure how a 'fecal trick' plays into this though.
Dog Turd filled nose cone perhaps ?
YOU FILL it, and I will launch it toward the wall.

Seriously though, lead shot mixed with epoxy pours well into nose cones and is about the best material for adding noseweight.

__________________
When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, and HAVOC !