This is the commemorative coin for the Battle of Rabun Gap, to be found in John Ringo's Legacy of the Aldenata series. (“Bun Bun” likeness used by permission of his creator, Pete Abrams, from the webcomic Sluggy Freelance)
Molon Labe Challenge Coin
Front: MOLON LABE: come & take them
Reverse: I’ll make my own goddamned lever. — Patricio Carrera
Front: Ripple Creek Security: Executive Protection Division
Reverse: Nothing Personal, It’s Just Business.
The coin of a mercenary company in Michael Z. Williamson’s Freehold universe, the sequence that begins with Better to Beg Forgiveness…
I Read Baen’d Books Challenge Coin
Front: I Read Baen’d Books
Reverse: RIP Joe Buckley
All profits from this coin will go to support two charities founded, supported, and run by Baen readers: Operation Baen Bulk, which provides care packages for deployed service members, and Read Assist, a 501c3 company that serves our disabled readers. http://www.readassist.org/ Each coin is $15. Buy all 13 author coins, and the “I Read Baen’d Books”
coin comes free. “I read Baened Books” was first used by Chris French. “Joe Buckley” used courtesy of Joe Buckley. Don’t forget to duck. See also The Many Deaths of Joe Buckley
Inauguration of President Moore Challenge Coin
Front: Inauguration of President Alexander Moore
Reverse: A.I. For Peace Now
The president’s personal event coin on his inauguration, from Travis S. Taylor's One Day on Mars series
USS Des Moines Challenge Coin
Front: USS Des Moines, "Daisy Mae"
Reverse: Nail to the mast her holy flag, Set every threadbare sail, And give her to the god of storms, The lightning and the gale! — Oliver Wendell Holmes Sr.
Ship’s coin from the Posleen Wars sequence of John Ringo’s Legacy of the Aldenata, from Yellow Eyes and The Tuloriad, by John Ringo & Tom Kratman.