From the most commonly used words to ones you've probably never heard of here they are. Some don't sound weird at first so just keep repeating them until they do.
Enjoy :)
0) ZERO
1) PLEASE
2) TELEVISION
3) FUZZY
4) FLUFFY
5) PANTALOONS
6) ABDERIAN
7) WEIRD
8) WIGGLEY
9) SQUIGGLEY
10) SQUISHY
11) MUSHY
12) SUDOKU
13) CALCULUS
14) DEADBOLT
15) NERVOUS
16) EXHALE
17) COUPON
18) UNIBROW
19) COLLAGE
20) SEVENTEEN
