I first came across this idea while working a course on sigils with Eian Orange and my interaction with another Adept. The first step is design yourself three sigils which can be combined into a singular working, once you have your sigils simply forget about them and deign a whole bunch more, this should soon help you forget what the intent of your original three sigils is for.
From here take a clear glass jar or candle holder and mark the sigils onto the glass using a sharpie or other permanent marker / paint. Then black out the rest of the jar leaving a little of the clear glass exposed around each sigil. Place a tea light or other candle into the jar and hey presto, your sigils will soon be dancing all over the walls with a life of their own while you sit asking “What the hell did i create that for ?” once you reach this point of questioning your sigil should be well on its way to manifestation of your desires.
Obviously this technique carries the usual freestyle application but allows you to charge your sigil by fire, i found in my own experimentation that fire carries a quickening process that illuminates your sigil, if you have an urgency for your desire to manifest simply add the symbol of Mercury for an Alchemical response.