I don't recommend this but a friend of mine had a fuel leak from a pipe and as it was during a rally, he jumped into some random person’s garden, cut about 150mm off the end of their garden hose pipe and reattached the hose pipe to the sprinkler head. He then proceeded to cut the fuel pipe in half, slide one end of the fuel pipe all the way through the hose pipe, held the other end of the fuel pipe to the join and slide the hose pipe back along the fuel pipe half way so the cut was half way along the inside of the hose pipe. Secured with 2 jubilee clips either side of the cut in the fuel pipe.
Now as said before I wouldn’t advise this but in that situation the hose pipe was just the right size to fit snugly over the fuel pipe and be fuel tight. A quick change in service saw a proper repair done before a suspected tip off lead the safety marshals to do a "random" service check.