A temporary drawing I have  compulsively done for as long as I can remember is manipulating the ring of condensation left by a cold glass on a table into either a naked tree or rising flames.  Evaporation is the fire dying out.

Drawing with a laser pointer is great fun when you have three kittens!  It reminds me of being a child with a sparkler on bonfire night, trying to write my name in the air before the sparks disappear. Unfortunately I can’t load movie clips and these stills don’t capture the shapes I was creating.