css/.storybook/Octicon.js

import React from 'react'
import {storiesOf} from '@storybook/react'
import octicons from 'octicons'
import SVGInline from 'react-svg-inline'

const Octicon = (props) => {
  const {name} = props
  if (name in octicons) {
    return <SVGInline svg={octicons[name].toSVG(props)} />
  } else {
    throw new Error(`No such octicon: "${name}"!`)
  }
}

const story = storiesOf('Octicons', module)
const sizes = [64, 32, 16]

Object.keys(octicons).forEach(name => {
  story.add(name, () => (
    <div>{sizes.map((size, i) => (
      <Octicon name={name} width={size} height={size} key={i} />
    ))}</div>
  ))
})