This page will list the userboxes I've created. Most of them apply to me; some don't, and were simply created to complement those that do.
Music: /improvise, /arrange, /tone-deaf
Colors: /RGB-additive, /CMY-subtractive, /VariableColorCode, /VariableColorCode-WhiteText
Random: /meow, /math-impossible, /math-strange, /unknown, /CrosswordPercentage, /Lava, /Gravity, /BetterCCWMaker
On the Wiki: /TalkPage