- Canada PMs
- edward & julie
- alpha, bravo, charlie, delta ...
- martin & luther - reformation guys
- composers
- TV show characters
- colours
- biblical characters
- hats
- bones
- metals
- cheeses - quark
- spiders
- beer brands
- blender speeds
- music tempi
- unix commands
- planets
- shoes (mule, pump, stiletto, brogue, sandal, mary jane)
- cooking vessels
- Henry VIII wives
- Seven Deadly Sins
- Orders of angels
- Supervolcanoes: Toba Taupo Yellowstone Garita...
- Vandal King names: wisimar, godigsel, gunderic, geiseric...
- animals under 10kg