If you have an old inflatable mattress, consisting of several independent sections, it is easy to adapt as life jacket for boating. You will have to sacrifice one of the middle sections, making it T-shaped hole for threading of the head. To fix the other slightly inflated section around the torso using the waist belt and extra lacing.
Recommend to read
NOT THE CLAMP, AND PIN
For rallying and compression with wooden sticks or planks when gluing, use special clamps carpentry. However, in the absence of them are just a long threaded stud with a couple of nuts...
“FAN” FOR MOTORCYCLE
Motorcycle owners know how difficult it is to operate the motor at low speeds — for example, when the motorcycle moves along a dirt bumpy road. Without blowing counter-flow cylinders...
