Check out this awesome silicone gas mask bong, which is available in several different color options, and comes with a plastic blue water bong attachment. 

The Gas Mask water pipe some with a comfortable inner construction that is comfortable for the wearers face and with adjustable head straps to fit comfortably around most head shapes & sizes. 

This gas mask bong is like a walking hotbox as there is no way to escape once you light up. All gas mask bongs come with a carrying case bag. 

It is noted that there can be some color variations as the masks are all handmade.