I built your worst "Self-Defense" inventions

Everything at https://RealBustedMerch.com is 50% off and then it'll be gone forever
And don't forget to get your tickets for OpenSauce! https://opensauce.com/tickets/
Check out @iancharnas his channel's better than Mark's!

Thanks everyone for not dying:
@RyanKung
@TheBackyardScientist
@williamosman
@iancharnas
@chubbyemu

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