Project like the Tongue Twister below

Try these also :
-- Sam's shop stocks short spotted socks.
-- Tragedy strategy.
-- Six shimmering sharks sharply striking shins.
-- Sixish
-- Crisp crusts crackle crunchily.
-- Give papa a cup of proper coffee in a copper coffee cup.
-- Six sharp smart sharks.
-- Flash message!
-- Red lorry, yellow lorry, red lorry, yellow lorry.
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Say this sharply, say this sweetly,
Say this shortly, say this softly.
Say this sixteen times in succession.