These are not vintage items. Around 2003 for just one, possibly two, seasons Beistle allowed another firm to offer reproductions of the eight-member black cat band. As I point out on page 54, these reproductions can be identified by their white accents, two bottom slots on each for a folded cardboard stand and orange/brown backsides. These reproductions have zero vintage value.
Mark B. Ledenbach's vintage Halloween collectibles blog.