Ever wanted to make a very fast and forever flickering redstone signal easily? Here is your answer!
Step 1: Wiring
Place down four redstone like you see here.
Step 2: Connecting
Place two repeaters in between the redstone, facing opposite ways as you see here.
Step 3: Power
Replace one of the redstone dusts with a redstone torch. This can be any of the four.
Step 4: Finished
As quickly as possible, replace the torch with redstone again. If the redstone goes completely dark, then repeat step 3 and 4 until it works. If it stays light red, you have replaced the torch too fast and repeat steps 3 and 4 until it works. Enjoy and please give support and suggestions!