here is some interesting stuff I found on the internet!
I didn't have time and patience to try it... maybe you know if it works ;)

HOW TO MAKE AND USE CHARMS

Trace each symbol in red ink (either Doves Blood or Dragons Blood
depending upon the situation),
marker while concentrating on the symbol's purpose.
If you print in color, trace the symbols with your blood.
Pray or do a personal ritual to consecrate each individual charm and
charge it with its purpose.

Call upon the power of God/dess, or other entities that may be useful.
The consecration ritual may include burning a copy of the charm.
However, keep another copy to carry with you in a mojo bag of the
appropriate color.

You may also want to add a lodestone to the bag for extra power.
If you do, remember to "feed" your lodestone at every full moon
Runes make excellent focus points for meditation.
The meditation will then set you on your path toward your desired
goal.

Carry the piece of paper with you in a pocket or in your wallet.
Lay it under your pillow or on your night table when you sleep.
The charms will last as long as the piece of paper.
If you want to make more sturdy charms, carve and paint the symbols
onto pieces of wood.
(Do not laminate the piece of paper. You could, however, make several
copies and
consecrate all at the same time.)