There are plenty of commercially made indicators to use for fly fishing. Of course, as a beginning fly fisher, you will encounter those that abhor the use of an indicator and liken it to using a golf ball size, red and white bobber with a chunk of night crawler beneath.
The use of a strike indicator to present the fly will be your choice. I am presenting an option for a home made variety, strike indicator. I thought it unique enough to present it for creating your own ‘micro indicators’. Check out the other Allen Brothers how to links as well.
“Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive. It would be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be
satiated; but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience.”