Ok, I've made a race modeled after the quickling, which in case you don't know (they're in the MM) are a race of very fast, small, elven creatures.
Height: 3'6" - 4'0"
Weight: 50-60 lbs.
Ability Scores: +2 DEX, +2 WIS
Senses: Low-light vision
Languages: Common, Elven
Skills: +2 Acrobatics, +2 Stealth
Your ancestors were native to the feywild, so you are considered a fey creature for any effects related to creature origin.
Small and Speedy
Quicklings get a +2 racial bonus to AC vs. opportunity attacks
Quicklings gain a +1 racial bonus to reflex defence
You do not grant combat advantage to enemies after running
You gain a +1 feat bonus to speed. this bonus increases to +2 at 11th level and to +3 at 21st level
When you shift, you can shift up to two squares instead of one
Speedy Blood Frenzy
Prerequisites: Quickling, Rogue
You get a +2 damage bonus against enemies that could not see you at the start of your turn. Increase the bonus to +4 at level 21
Quicklings are originally from the feywild, and most of them remain there, save the odd adventurer who chooses to explore new lands, for one reason or another. For this reason they are not well known in the material plane, and they are a rare sight, even in the largest cities. Quicklings will generally do anything it takes to improve their own wellbeing, and are often known to side with more powerful beings than themselves, especially a fellow fey. They usually work for themselves, only helpin others if it benefits them in the long run, and they will abandon an ally without a second thought at the first sight of trouble.
Quicklings are quite short, and they have skin which ranges from various shades of gray to pure white. They have very large eyes and ears, which heighten their senses in the dark, and because of this, many commoners make the mistake of assuming quicklings are related to goblins, a mistake which has been many a poor civilians last. Quicklings generally distance themselves from any non-fey race, although they especially despise goblinoids and halflings. Although the life expectancy of quicklings is not known, estimates have range from two up to four centuries.