The pentagram is the bane of many a Christian spotting symbols in pop culture, which is no doubt one reason some believers have co-opted the heartagram, a trademarked symbol of Finnish metal band HIM.  The heartagram represents HIM's signature brand of "love metal", represented by the incorporating a heart into a pentagram. 

Here's a picture of a Christian teen blissed out with a heartagram at a church youth group concern--one of several excellent pics in a Rolling Stone photo essay on Christian rock.  But is HIM really a reference to Jesus?  Satan-fearing fundamentalists would no doubt be shocked to learn that HIM sings about witches and "stigmata diaboli"  To top it off, the band's name originally stood for "His Infernal Majesty."  

But that's OK--should they be exposed to actual HIM recordings, kids who want to stay spiritually pure can simply put on these nifty heartagram ear plugs!