2 items, black with white stripe?

[nc2tarheels]

First item is beside this hermit. It's stretching and shrinking inward every couple of seconds. Any idea?

 

The last picture is a light pink/purple.

[notwithit]

Second one "assuming you're talking about the coral looking thing" is a pissed off kenya tree.

first seems like some sort of parasite.

[matty0206]

The first one looks like a peanut worm.

[FlowerMama]

Yep, if the mouth looks like one of those starfaced moles then it's peanut worm. I have one and about once a month I see him. Good guy.