1) The bandage was wound around the wound. 
2) The farm was used to produce produce. 
3) The dump was so full that it had to refuse more refuse. 
4) We must polish the Polish furniture. 
5) He could lead if he would get the lead out. 
6) The soldier decided to desert his dessert in the desert. 
7) Since there is no time like the present, he thought it was time to present the present. 
8) A bass was painted on the head of the bass drum. 
9) When shot at, the dove dove into the bushes. 
10) I did not object to the object. 
11) The insurance was invalid for the invalid. 
12) There was a row among the oarsmen about how to row. 
13) They were too close to the door to close it. 
14) The buck does funny things when the does are present. 
15) A seamstress and a sewer fell down into a sewer line. 
16) To help with planting, the farmer taught his sow to sow. 
17) The wind was too strong to wind the sail. 
18) Congress spent capital to make the Capitol look capital. 
19) Upon seeing the tear in the painting I shed a tear. 
20) I had to subject the subject to a series of tests. 
21) How can I intimate this to my most intimate friend?
22) The bear couldn't bear the pain. -Matthew Sairs
23) Carrying a tire might tire you out. -Matthew Sairs
24) There is no precedent for how the president acted.
25) There is neither pine nor apple in a pineapple. 
26) If teachers taught, did preachers praught? 
27) If the plural of tooth is teeth, why isn't the plural of booth beeth? 
28) There is no ham in a hamburger.
29) It is difficult to dig or mine ore with an oar.
30) Sign the sign with your sign.
31) Do you see the dew?
32) One die, two dice; one dies, two die.
33) If a vegetarian eats vegetables, what the heck does a humanitarian eat?
34) Boxing Rings are squares.
35) Quicksand works slowly.
36) My nose runs, my feet smell.