David Vaughan slides in for his first Wales goal in his 16th game
First international goals for David Vaughan and Aaron Ramsey saw Wales end a poor World Cup campaign on a high and eased pressure on boss John Toshack.
Gareth Bale tormented group four bottom side Liechtenstein with a man-of-the-match display and his run and cross set up Vaughan who slid in for the first.
A shaky Wales defensive display gave a number of chances to David Hasler.
But Bale won a free kick on the edge of the box and Ramsey stepped forward to fire in a curling, right-footed strike.
A hardy band of 400 Wales fans were watching in the tiny alpine state, despite Wales' dismal record of six losses in 10 qualifying games that had seen veteran manager Toshack come in for severe criticism.
They saw Wales - already certain of a fourth-placed finish in the group - start brightly at Vaduz's Rheinepark Stadium, Bale electrifying in attack down the left-hand side.
His third-minute cross should have given Wales the lead, but Jermaine Easter - a surprise choice up front ahead of Sam Vokes in a 4-4-2 formation - missed a great opportunity from close range.
Liechtenstein - who were earlier doomed to a certain bottom-place finish in the group when Azerbaijan drew 1-1 with Russia - showed they had teeth, though, Hasler easily turning new Wales captain James Collins and forcing Boaz Myhill into a save.
Another Bale run down the left led to the first goal, a sharp ball behind the defence just avoiding Simon Church, but Vaughan sliding in near the back post to fire home his first international goal in 16 games.
Lucas Berle shot over the bar for the home side before Easter, playing his first international since March 2008, was put through by a fantastic Ramsey ball.
A delightful first touch by the speedy MK Dons striker put him one-on-one with the keeper.
But Peter Jehle stood up well to the test and saved the front man's effort with his legs.
Converted defender Ashley Williams helped marshal Wales' injury-depleted midfield, allowing Bale more attacking space, but David Edwards was unable to convert the full-back's whipped cross.
Liechtenstein nearly made Wales pay on the stroke of half-time, exposing a shaky Wales back four where Collins again showed a worrying tendency to over-commit.
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