Not all of them do
The Tagalog term for "tongue twister" is "balabalakit."
twisting your tongue
The first word in a tongue twister about seashells is typically "She sells."
Yes, a tongue twister is an example of alliteration because it uses repetitive sounds of the same beginning consonant in close succession to create a challenging phrase to pronounce.
First make it funny. Have maybe a tongue with the tongue twister coming off in a swiggly pattern or something. Be creative.
twisting your tongue
"Fiona the firefighter felt afraid fighting the fierce flames."
Sure! Here's a tongue twister for Ohio: "Olive owned an old owl, in Ohio, oh my!"
"Washington's washing machine washed Washington's washed-out shirts" is a tongue twister related to Washington.
a poet
of his tongue twister
That word is a tongue twister in of itself.