A few illustrations for me bucko ~k-ee-ran's FMA fanfic, Hatashijou. ^^ [ [link] ]

No pillaging this if ye not be ~k-ee-ran, savvy?

Left: Reilly Caidrew's general/everyday circle; worn on a leather wristband on her right wrist; used most often
Right: the first circle Rielly ever made and used; worn on soles and inner sides of both shoes [thus, can start a transmutation by jumping and landing on something or by stomping a foot]; used only in last-minute/quick situations when there is barely any time to draw circles [seeing as it's the simplest of the three circles to draw] and when her other circles are "gone" [stolen wristbands, etc.]; also a symbol from Harry Potter [not saying what it is a symbol of so no spoilers here]
Top/Center: Reilly's most powerful/amplifying circle; used in the most dire and desperate situations; worn on a leather wristband on her left wrist; inspired by the symbol for Vampire Knight

Harry Potter (c) J.K. Rowling
Vampire Knight (c) Hino Matsuri
Fullmetal Alchemist (c) Hiromu Arakawa
Hatashijou (c) ~k-ee-ran
this deviation and the three transmutation circles (c) ~CaptTreasureTroveTi