Here are some examples:
Different pronunciations:
* bow (to bend) vs. bow (a weapon)
* lead (a heavy metal) vs. lead (to guide)
* tear (to rip) vs. tear (water from the eye)
Same pronunciation:
* bat (a nocturnal flying mammal) vs. bat (a piece of sporting equipment)
* close (to shut) vs. close (near)
* minute (a small amount of time) vs. minute (very small)
Let me know if you'd like to see more examples!