Once again, can't claim this one but saw it on Book of Faces and thought I would give it a lash.
How many times have you been on a roadtrip or out at the trails and need to re seat a tubeless tyre? You can either play pump lotto and hope to get lucky or duck off and try to find a servo.
Someone recently marketed a pump with a secondary chamber that you pressurise and then throw a switch and bang, on goes the tyre with one big hit of air.
Well you can achieve the same thing with a 2l Coke bottle, 2 valves with cores removed and a little plastic tube with a tap inline. Have tried it and it works perfectly