Is there any way to attract or influence iron golems?

I created several iron golems to protect a village, and they occasionally get through the walls (mostly cobblestone fences) I've built. Is there any way to get them to move toward me, or toward the village, and back where they belong? I tried holding a rose.

No, golems will only follow you if you've attacked them, which isn't recommended. There's no peaceful way to make them follow you.

Like every mob, though, they can be moved with water streams. Trap them and build a canal to bring them back to the village. Or, if you want their iron, trap them and move them away from the village. Once they are far enough they don't count for the golem spawn limit anymore and new ones will spawn to replace them. Then you can build a crusher to "peacefully" dispose of your extra golems and harvest their iron and roses.

Use a lead. It works in the new update.

If you have Minecraft 1.6+ try using a lead to pull them.

You make a lead with 4 string (S) and 1 slimeball (O):

S S _
S O _
_ _ S