Some more inventions to add,
1 by 2 or 2 by 3 or 3 by 4 chai, depnding on group of persons !!!
Full meals or unlimited meals - shared by 2 or 3 guys
but pay for 1 token only !!!!!
Buy a plate of 3 idlis and drink a bucket of sambar !!!!
Paan beedas with stock code # or product # or Barcode #

and many more interesting !!!!!!