I built your worst "Self-Defense" inventions

Duration: 20:31

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