good2go122
IT should work great to fill blow up dolls.

stephanie U
water bottle rockets.use a empty plastic bottle with cap on,well you do need a little bit of water,drive a nail through the cap big enough to force air in to it.you have to have an attachment that has a tip,like the one you blow out to air spray any debris in working area.hold bottle down so the water do not leak,force the air in the hole,lift up with air still blowing your bottle should shoot off.just keep practicing on it.it was a toy at one time that was sold,but this is home made.i even saw a 3 liter plastic bottle go up in the air.look like a nasa rocket ,slow and finally up the air.