Shredded Swiss cheese.
Shy Shelly says she shall sew sheets.
Silly Sally swiftly shooed seven silly sheep. The seven silly sheep Silly Sally shooed shilly-shallied south. These sheep shouldn't sleep in a shack; sheep should sleep in a shed.
Silly sheep weep and sleep.
Six sharp smart sharks.
Six shimmering sharks' sharply striking shins.
Six short slow shepherds.
Six silly sisters sell silk to six sickly senior citizens.
Six slippery snails, slid slowly seaward.
Six sticky sucker sticks.