Found odd thing on conch

[Head-in-sand]

Anyone know what this is? Found it on conch. Had conch for 2 months and just showed up this week.

 

[Crabs McJones]

Hard to tell, but resembles either cucumber mouth or medusa worm mouth

 

[Head-in-sand]

Going for the Alien experience? :) No cucumbers or medusa worms. Maybe the conch is going for the bedazzled look? It looks like a snowflake landed on the shell.