I like that pink blouse. (hatpin)
Is this compass portable? (passport)
The monkey paddled upstream. (keypad)
Mars is a fair planet. (airplane)
He knows how to train bowlers. (rainbow)
Their clients switched to a sounder agency. (underage)
They put on a new show every day. (however)
The company howled at his jokes. (anyhow)
Next Valentine's Day give your lover flowers. (overflow)
She bruised her thigh ballet dancing. (highball)
Your "earwig" example does not seem to be a compound word that is split into 2 words. How about "EVERYBODY reacts differently to the treatment because EVERY BODY is different."