Well, making up your own approach plates does sound crazy...but...
In remote regions, where there are very little if anything published for landing strips, pilots have made up their own approach plates for obvious safety reasons. I've seen some pretty extensive and impressive hand drawn sets created. I attribute them to the ingenuity and professional survival skills of the working aviator. One particular set covering South Sudan, started I think by a fellow named Hugh Pryor, and, carried on with additions and up dating by other pilots over two decades, I wish I had for museum purposes. They are absolutely incredible in my opinion.