Take one. Take two. Take three. Take four! Flash cube! by Antonio Rosario | May 8, 2013 | Photo History, Posts Who remembers using these? Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)MoreClick to email this to a friend (Opens in new window)Click to share on Tumblr (Opens in new window)