The Fabrege (or Tiffany) light yo-yo could also be copied so anyone could have one.
for egregious complication (literally, like watch parts) the yoyo could have a counterrotating area that spins at a different velocity, with a geared down velocity this causes intermittent pure sparkles amongst the gorgeous blended colors of light-- beanangel, Sep 06 2016 Why "Fabrege"?-- MaxwellBuchanan, Sep 07 2016 Fabreeze?-- normzone, Sep 07 2016 Good to see you again, [beanangel], but take a breath between posts, will ya?-- neutrinos_shadow, Sep 07 2016 random, halfbakery