we bought a 2 story house forclosed and none of the vents upstairs are releasing air. we cleaned the vents out w the hvac serviceman and we found a glass coke bottle and a nerf baseball in the vents just by reaching our hands down it as far as we could but we can only reach so far.. im now possitive there is more toys or junk down there causing air flow problems.. how in the hell am i going to get that junk out of the vents with little mess as possible?????? please help