JLA: Welcome to the Working Week
Patton Oswalt - writer, Patrick Gleason - penciller, Christian Alamy - inker, Ken Lopez - letterer, John Kalisz - colorist, J.D. Mettler - separator
A suspicious young magazine writer stows away on the JLA Watchtower and witnesses a week in the "normal" life of the world's greatest super-heroes.
Ambush Bug cameos in two panels on page 31, helping Plastic Man and The Heckler (!) ferry beer into a heroes-only party! He even has two lines... although they aren't particularly Buggy, heck, they could be said by Animal Man or Blue Beetle or anybody in the DCU. Not in the usual "Whoop Whoop!" style. (First reported by Agent #009 Joe G.)
Sort of a cameo of a hint of another alternate universe Ambush Bug! Plastic Man and Woozy Winks provide commentary on a sports game, name-dropping the "Earth-2 Ambush Bug"! (Reported by and scanned by Agent #022 Loren.)
Check out the panel in question here!
Mythology: The DC Comics Art of Alex Ross
October 2003, published by Pantheon
In the section on Kingdom Come, there's a bunch of quickie Ross sketch sheets, one of which shows a smirking Ambush Bug coming on to the KC version of Fire. (Cameo scan supplied by Agent #002 Squashua.)
Lobo Unbound #4
Keith Giffen - writer, Alex Horley - artist framing sequence, Andy Kuhn - artist Ambush sequence, Bill Crabtree - colorist Ambush sequence, Tom Orzechowski - letterer, Harvey Richards - asst. editor, Joan Hilty - editor
Ambush Bug tries to get through interstellar customs but ends up in jail. He is sprung by the Moyl Men, a band of smurfesque aliens fascinated with circumcision. Although they seem innocent and helpful, their insistence on foreskin harvesting and calling our hero Ambush Bob forces the Bug to abandon them. During his prison stay, the lost and forlorn Bug decides to become a bounty hunter. Issue #4 ends with Ambush Bug trying to find Lobo. Ambush Bug's personality is exactly as we left him in 1992's Nothing Special: homeless, broken, depressed, sarcastic.
BUG FACT: The first three isues of Lobo Unbound are fully painted, but three pages into this issue we switch to traditional inked line art for the introduction of Ambush Bug. Yes, it unfortunately makes the Bug inclusion seem like an afterthought to pad out the Lobo series... but we do get a brief return of the famed 9-panel grid!