The Turbo Sparkler is another nifty gadget from the vaults of Grand Illusions. It “was made by the Da Mert company (founded by Fred Da Mert)” and has strips of foil “which fan out when the yo-yo is operated”. Video clip after the jump.
The Turbo Sparkler is a yo-yo that came out in about 1990. It was a nice use of diffraction foil, which was quite new at the time