| 100% | EIO | 3 | Vowels that end "Old MacDonald Had a Farm" |
| 80% | EIO | 3 | "Old MacDonald Had a Farm" ending vowels |
| 70% | EIO | 3 | Vowels at the end of "Old MacDonald Had a Farm" |
| 69% | EIO | 3 | "Old MacDonald Had a Farm" ending letters |
| 69% | EIO | 3 | Vowel trio in "Old MacDonald Had a Farm" |
| 65% | EIO | 3 | Vowels in "Old MacDonald Had a Farm" |
| 64% | EIO | 3 | Ending letters of "Old MacDonald Had a Farm" |
| 64% | EIEIO | 5 | Ending letters of "Old MacDonald Had a Farm" |
| 62% | AMOO | 4 | "Here ___, there..." ("line from Old MacDonald Had a Farm): 2 wds. |
| 59% | EIEIO | 5 | "Old MacDonald had a farm, ___" |
| 59% | OINKS | 5 | "Old MacDonald Had a Farm" sounds |
| 59% | MOOS | 4 | "Old MacDonald Had a Farm" sounds |
| 59% | MOO | 3 | "Old MacDonald Had a Farm" sound |
| 59% | BAAS | 4 | "Old MacDonald Had a Farm" sounds |
| 59% | EIO | 3 | "Old MacDonald had a farm..." ender |
| 59% | OINK | 4 | "Old MacDonald Had a Farm" sound |
| 59% | BAA | 3 | “Old MacDonald Had a Farm” sound |
| 59% | EIEIO | 5 | "Old MacDonald Had a Farm" refrain |
| 59% | EIO | 3 | "Old MacDonald had a farm ..." ender |
| 58% | EIO | 3 | Last letters in "Old MacDonald Had a Farm" |
| 58% | OINK | 4 | Pig sound in "Old MacDonald Had a Farm" |
| 58% | BAAS | 4 | Sounds in "Old MacDonald Had a Farm" |
| 58% | OINK | 4 | Sound in "Old MacDonald Had a Farm" |
| 58% | MOO | 3 | Sound in "Old MacDonald Had a Farm" |
| 56% | OINKS | 5 | There are eight in "Old MacDonald Had a Farm" |
| 56% | MOO | 3 | Cow's sound in "Old MacDonald Had a Farm" |
| 56% | OINK | 4 | One of eight in "Old MacDonald Had a Farm" |
| 56% | EIEIO | 5 | Children's song refrain ("Old MacDonald had a farm …") |
| 56% | EIEIO | 5 | "...Macdonald had a farm" ending letters |
| 56% | AMOO | 4 | "Here ___, there..." ("Old MacDonald Had a Farm" line): 2 wds. |