Farris' double-bracket entry not count for you?
As for skater's signature moves:
Yuna: Yuna spin, 3lz+3T
Adam: rippon lutz,
Caroline: pearl spin
Shizuka: donut spin
Yuzuru: 3A+3T, 3A+3A+3A.. seq
Patrick: sweeping transitions
Akiko: flying step sequence
Kostner: effortless speed, back spiral
V/M: goose lift
elena: swan lift or snake lift
Ashley: swan arms spiral
Farris: skid while skating (spiral position)
So Youn: ballet arms
Radionova: RG style costume
Daisuke: lay-back spin
spread eagle into a one footed back counter entry to a 3A+2T hands over head (into the second half of the program)
I'd say Hanyu's signature moves are his 3A's in general. Difficult entries, insane combos, and its all into the second half of his programs. Plus his 4T+3A+3A+3A If Zayak rule wasn't in affect, he'd probably 4T-3A his way through his entire program even with the sequence deductions.
I'm not a fan of guys doing Ina Bauers (yeah, yeah, call me sexist) but absolutely agree that Paul Wylie did some great ones!
Am I really the first to mention Jason's Riverdance? I know it was only last season, but that program and especially that Nationals performance will not be forgotten I'm sure.
Some signature programs:
Michelle Kwan: Rachmaninoff SP
carolina Kostner: Bolero? (and, as her signature move, the 3F+3T+2Lo at the beginning of her FS, even if she didn't land it clean a lot of times!)
Jason Brown: as TMC said, Riverdance!
Jeremy Abbott: Muse FS
Savchenko/Szolkowy: Pink Panther FS (and then SP )
Yu-Na Kim: Gershwin FS
Virtue/Moir: Mahler FD (the one they'll be remembered for)
Patrick Chan: maybe Rachmaninoff SP? Or POTO?
Daisuke Takahashu: probably Blues for Klook
Shawn Swayer uses his flexibility to perform the most spectacular Y and I spins, as well as spirals and Cantilever.
I think Jason's Russian split is definitely his signature move, and the Y-spiral into the 3Lz (he actually did an I-spiral into the 3Lz in Liebestraume for a while). Also I love that dislocating hip spiral at the start of Riverdance.
If we're talking signature programs, Max hasn't yet outdone Tron.
Javier Fernandez does a rocker entry into his 3A, with a choctaw and waltz jump to spread eagle prior to it. http://www.youtube.com/watch?v=_K9zFHe8U1o
Kovtun also does a counter entry leading up to his 3A. http://www.youtube.com/watch?v=VIwK1zrJYEI
Of course, none of these are as difficult as Hanyu's counter obviously, since he goes directly off the turn up into the axel with no change of edge or stepping from his right foot to his left foot.
Mao's Rachmaninoff at Sochi