Fat, rat, cat, sat, mat, bat, hat, begat, rugrat, slat, flat, democrat, plat,
gnat
Gnat.
gnat hat
gnat
Gnat.
Falling cat
Gnat
cat bat hat slat rat pat gnat brat
* bat * cat * drat * fat * hat * mat * gnat * pat * rat * sat
Gnat's hats (several hats for one gnat). Or gnats' hats (several hats for several gnats).
Little black cat small brown rat buzzing black gnat
The only legitimate name I can think of to rhyme with Beth is Seth.