They just showed this joint-making machine on national television in Austria (reddit)

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Tutti-Frutti gravity bong stonerengineering GIF
1,998 Views

Tutti-Frutti gravity bong

#stonerengineering
My no maintenance, infinitely reusable gravity bong attached to my desk I just made (reddit) StonerEngineering GIF
1,071 Views

My no maintenance, infinitely reusable gravity bong attached to my desk I just made (reddit)

#stonerengineering