Every hardware store around me carries 'hand held' grommet pliers for small (1/4") brass grommets- and also the 'hammer and anvil punch' set for larger ones. I bought a hand held plier grommet machine that sets the larger ones through Ameriban- a sign supplier-and have used it on heavy duty vinyl canvas with no problem-sets a 1" diameter grommet but not quite as 'clean' as the hammer and anvil. Was very inexpensive-the 'counter top' model that is what most shops use is around $300, the hand held I think was under $50, the hammer/anvil set is about $15 with a box of grommets. All my textile suppliers carry the 'pregrommeted' towels for golf blank-not as cheap as a blank towel but figure if your time and effort is worth the difference. Roland