Round

Square or rectangle

Square or rectangle with cut corners

Square or rectangle with radius corners

Square or rectangle with 1 left cut corner

Square or rectangle with 1 right cut corner

Octagon - all 8 sides equal

Hexagon

Square or rectangle with radius corners and 1 left cut corner

Square or rectangle with radius corners and 1 right cut corner

Square or rectangle with 2 cut corners

Square or rectangle with bowed sides