A chain made of skulls.

You can print as much as you want and glue the ends together to get an endless version of it! Don't forget to print the dovel and don't forget to scale it same size as the skulls when you change it.

Don't print it under 70% or the connectors will get too thin and might break easily.

Also watch my other modell of this Skull Chain - in an “closed/finished” version ;)