If you go to a religious centre in India, you'll usually see mendicants wearing wooden slippers. It is a substitute for leather shoes, because leather is considered impure. Wooden slippers are harder on the feet, and you need ultra-strong toe muscles like Superman, but hey - at least you feel virtuous.
At Hanuman Mandir, I spotted a man making these slippers. So I hunkered down to see what he was doing.
He would make a neat hole in each slipper, and then he would hammer a little wooden peg into it as a toe-hold. Just like a stopper in a wine bottle!
I asked him if the peg would hold. In response he smiled and waved the bottle of Fevicol at me. But of course. I should have known he'd use Fevicol. Afterall, every carpenter in India uses Fevicol, and this is woodcraft, not shoemaking!