Lol, I can only think of "Ember" and that's for a girl. Embers are the glowing flecks left in a fire once it has burnt out.
"K".
Elektrikk
Ziggy.
Some cool nicknames for the name Kavita could be "Kavi", "Kavy", or "Kav".
Mar (pronounced Mair)
May or May-Bear?
Try Nat
gangster groove
these are some cool nicknames for fantage: honeybee575 preetyprincess dazzle tropicalgirl minniemouse bunnyboo koolkat funkyfrog stylinsheep
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dian di anna anne
Battlefield 3 can be abbreviated as BF3.