Worth mentioning is that pentagrams are not in and of themselves satanic. As Octavia points out, it’s mainly a symbol used in Wiccca. From what I understand it, pentagrams represent the unity of the elements and the confusion seems to come from the early church’s tendency to paint everything they did not understand as “evil” or “of the devil.”
Raven’s pentagrams where supposed to be inverted pentagrams, although my tendency to draw her stickers and posters crooked prolly made it hard to see which end was intended to be up…