X Brain, Butterfly, Turbo Bumblebee, Black Mamba. If you did not have one of these yo yos in the late 90s, what were you even doing? Fortunately, I managed to acquire all but the Turbo Bumblebee. Looking at eBay now, that may need to change. My middle school was completely overrun by yo yos. Recess was spent walking the dog, building Eiffel Towers, and rocking the baby. Friendships were tested over hesitation battles to see whose yo yo could spin the longest before retrieval. Eventually they got banned because, apparently, allowing kids to have high-speed spinning objects at school was not the best idea.