A Rowing Machine Slingshot Ever considered rowing to be a scary sport? This might change your mind. Facebook Prev Article Next Article Videos Checkout these cool gadgets... Related Posts Using Virtual Reality to Buy Multimillion Dollar Real Estate World's Largest Vending Machine This is what you call a zoom Epic Slip ‘N Slide Should Be On Your ToDo List Glass Room Suspended Above the Alpes Sarcoman – The Robot That Does It All