I've been tri-string bubbling now for 4 years after seeing it done in Valencia, Spain. I have never accepted money yet. Myself, my wife and grandson assisted Brian Lawrence at Maker Faire in California in May of 2018 and 2019. My wife and I attended DAZE5 and assisted in the castle and theater with the Guinness successes. (Yea!) We have also bubbled for grade school children and church youth groups locally, and at nursing homes and public parks and use about a gallon of juice daily when the conditions warrant near our home.