Chick Mask is angry...and he knows where you live!
RIT Easter egg color and moon kit - 1950s/60s
Ah, Easter; the traditional time to traumatise li'l children by dressing up as scary-ass Easter Bunnies and letting them play with psychotic face masks. Why is he so angry? And where does the moon fit into Easter egg celebrations?*
Either way, Chick Mask is clearly not happy about it.
*Ah, thanks to the magic of Google, it appears that these Easter eggs were destined for a moon visit. Thanks, that makes so much more sense now.