Find (Un)Familiar

Take a look at the Find Familiar spell.  It definitely has a historical basis, but it's a bit boring.  I give spell-casters a choice: they can take a normal and inconspicuous animal familiar as per the spell description or they can opt to receive an outlandish familiar by rolling on the following table:

Summon Familiar Table

1d12	Familiar	Sense Augmented
1	All-too-human Black Cat (wears a dapper waistcoat, walks upright on hind legs, philosophizes about the will-to-power)	Hearing and night vision
2	Chain-rattling Spirit (ghostly form clad in a death shroud and weighed down with chains, surprisingly chipper personality)	180 degree vision
3	Dandyish Devil (tiny, wears a jaunty cap and smokes cigars, complains of ennui)	Improved smell
4	Hovering Skull (a skull that hovers in mid-air, has a ridiculous accent, talks about books a lot)	Much improved distance vision
5	Mechanical Owl (made of brass and tin, makes whirring and chirping noises)	Hearing, night vision
6	Miniscule Gargoyle (stoic, likes to sit motionless on bookshelves to be mistaken for a paperweight)	Much improved distance vision
7	Non-euclidean Dog (looks like a normal dog—but something just seems off about it, always smells vaguely of sulfur)	Hearing, improved smell
8	Puckish Sprite (dressed in green finery, demands to be carried everywhere inside a kettle, makes lewd jokes)	Hearing
9	Rabid Raven (looks like a normal raven, speaks common, encourages everyone within earshot to kill-kill-kill)	Improved vision
10	Shaggy Manthing (small creature covered with hair, its features are impossible to discern, wobbles about, makes odd noises at random intervals)	Improved hearing, improved smell
11	Tiny Devilgirl Dancer (small female devil, dressed provocatively, will dance any dance if asked)	Improved smell, night vision
12	Uncanny Marionette (a walking, talking ventriloquist's dummy, stares creepily, makes dire pronouncements)	Improved vision