S and T are useful in such phrases as Shark Teeth:

Strangely Tinted:

Sunken Tubes:

Sea Lion Twirl:
[flv]/2010/06/P1280930.flv|424|240[/flv]
Strange Things:

Sea Turtle:

Seal Tired:

Sweet Treats:

And, finally, Swinging TechyDad:
[flv]/2010/06/MVI_0446.flv|640|480[/flv]