1.   After I turned the engine off and opened the door, I found my legs had turned to blancmange and moulded themselves into a sitting position.

2.   My legs have turned to water.

3.   But by evening the next day, the leg had turned cold and blue below the knee.

4.   Finally stepping off, I sank to the ground, my legs having turned to rubber.

5.   His left leg turned black.

6.   Legs turn to mush.

7.   My back aches, my shoulders throb, my legs turn to iron.

8.   My legs were turning out instead of in front of me.

9.   The leg eventually turned gangrenous and had to be amputated.

10.   They are a hit with people whose legs are turning to jelly late in the day but who still want to take a couple fun runs.