Step 1: Gather Ingredients
Gather a dark blue expo or marker, a dark purple marker, and tape. Clear tape works best
Step 2: Tape
Have 3 small strips of tape.
Step 3: Color Blue
Take 2 of the strips and color blue on the non-stick side.
Step 4: Color Purple
Take 1 strip and color it purple.
Step 5: Apply
Apply strips in this order: blue blue purple onto a phone flash light or a regular flash light.
Step 6: Enjoy!
Works best in dark rooms with bright colors and black light paint!!!
Pictures are from my room and were done with black light paint.