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
FRIGATES AGAINST SUBMARINES
In the summer of 1971 the calm waters of the North sea became the scene of very interesting events. On 6 July the Bay of the Firth of forth, the two venerable British ship, once very...
“SLIT” SHOVEL
For the owners of the garden or suburban areas it is possible to make usual dural or steel pipe. Shown in figure "a digger" will come in handy for digging deep and narrow trenches during...
